BlackRock Emerging Markets Long/Short Equity Fund

November 27, 2013

Summary Prospectus

BlackRock Funds^SM | Investor and Institutional Shares

►	BlackRock Emerging Markets Long/Short Equity Fund
	Investor A: BLSAX • Investor C: BLSCX • Institutional: BLSIX

Before you invest, you may want to review the Fund’s prospectus, which contains more information about the Fund and its risks. You can find the Fund’s prospectus (including amendments and supplements) and other information about the Fund, including the Fund’s statement of additional information and shareholder report, online at http://www.blackrock.com/prospectus. You can also get this information at no cost by calling (800) 441-7762 or by sending an e-mail request to prospectus.request@blackrock.com, or from your financial professional. The Fund’s prospectus and statement of additional information, both dated November 27, 2013, as amended and supplemented from time to time, are incorporated by reference into (legally made a part of) this Summary Prospectus.

This Summary Prospectus contains information you should know before investing, including information about risks. Please read it before you invest and keep it for future reference.

The Securities and Exchange Commission has not approved or disapproved these securities or passed upon the adequacy of this Summary Prospectus. Any representation to the contrary is a criminal offense.

Not FDIC Insured • May Lose Value • No Bank Guarantee

Summary Prospectus

Key Facts About BlackRock Emerging Markets Long/Short Equity Fund

Investment Objective

The investment objective of BlackRock Emerging Markets Long/Short Equity Fund (the “Fund”), a series of BlackRock Funds^SM (the “Trust”), is to seek total return over the long term.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $25,000 in the fund complex advised by BlackRock Advisors, LLC (“BlackRock”) or its affiliates. More information about these and other discounts is available from your financial professional or your selected securities dealer, broker, investment adviser, service provider or industry professional (including BlackRock, The PNC Financial Services Group, Inc. and their respective affiliates) (each a “Financial Intermediary”) and in the “Details About the Share Classes” section on page 19 of the Fund’s prospectus and in the “Purchase of Shares” section on page II-60 of Part II of the Fund’s Statement of Additional Information.

Shareholder Fees (fees paid directly from your investment)	Investor A Shares	Investor C Shares	Institutional Shares
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.25%	None	None
Maximum Deferred Sales Charge (Load) (as a percentage of offering price or redemption proceeds, whichever is lower)	None ¹	1.00% ²	None
Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)	Investor A Shares	Investor C Shares	Institutional Shares
Management Fee	1.50%	1.50%	1.50%
Distribution and/or Service (12b-1) Fees	0.25%	1.00%	None
Other Expenses^3,4	0.27%	0.30%	0.33%
Acquired Fund Fees and Expenses⁴	0.18%	0.18%	0.18%
Total Annual Fund Operating Expenses⁴	2.20%	2.98%	2.01%
Fee Waivers and/or Expense Reimbursements⁵	(0.02)%	(0.05)%	(0.08)%
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements⁵	2.18%	2.93%	1.93%

¹	A contingent deferred sales charge (“CDSC”) of 1.00% is assessed on certain redemptions of Investor A Shares made within 18 months after purchase where no initial sales charge was paid at time of purchase as part of an investment of $1,000,000 or more.
²	There is no CDSC on Investor C Shares after one year.
³	Other Expenses have been restated to reflect current fees.
⁴	The Total Annual Fund Operating Expenses do not correlate to the ratio of expenses to average net assets given in the Fund’s most recent annual report, which does not include Acquired Fund Fees and Expenses or the restatement of Other Expenses to reflect current fees.
⁵	As described in the “Management of the Fund” section of the Fund’s prospectus on pages 33-37, BlackRock has contractually agreed to waive and/or reimburse fees or expenses in order to limit Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements (excluding Dividend Expense, Interest Expense, Acquired Fund Fees and Expenses and certain other Fund expenses) to 2.00% of average daily net assets (for Investor A Shares), 2.75% of average daily net assets (for Investor C Shares) and 1.75% of average daily net assets (for Institutional Shares) until December 1, 2014. The Fund may have to repay some of these waivers and/or reimbursements to BlackRock in the following two years. The agreement may be terminated upon 90 days’ notice by a majority of the non-interested trustees of the Trust or by a vote of a majority of the outstanding voting securities of the Fund.

Example:

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

	1 Year	3 Years	5 Years	10 Years
Investor A Shares	$734	$1,175	$1,641	$2,924
Investor C Shares	$396	$ 917	$1,563	$3,295
Institutional Shares	$196	$ 623	$1,076	$2,331

You would pay the following expenses if you did not redeem your shares:

	1 Year	3 Years	5 Years	10 Years
Investor C Shares	$296	$ 917	$1,563	$3,295

Portfolio Turnover:

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 0% of the average value of its portfolio.

Principal Investment Strategies of the Fund

Under normal conditions, the Fund invests at least 80% of its total assets in global equity instruments and related derivative instruments issued by, or tied economically to, companies in emerging markets. BlackRock considers an emerging market country to include any country that is: 1) generally recognized to be an emerging market country by the international financial community, including the World Bank; 2) classified by the United Nations as a developing country; or 3) included in the MSCI Emerging Markets Index^SM. BlackRock determines that an investment is tied economically to an emerging market if such investment satisfies one or more of the following conditions: 1) the issuer’s primary trading market is in an emerging market; 2) the issuer is organized under the laws of, derives at least 50% of its revenue from, or has at least 50% of its assets in emerging markets; 3) the investment is included in an index representative of emerging markets; and 4) the investment is exposed to the economic risks and returns of emerging markets. The Fund may invest in securities of issuers of any market capitalization and in securities denominated in either U.S. dollars or foreign currencies.

The Fund pursues its investment objective by taking both long and short positions in a variety of global equity instruments. The Fund expects to maintain long and short positions primarily through the use of swap agreements and other derivative instruments, and may invest in such instruments without limitation. Although the Fund intends to maintain an overall long position in its portfolio investments, the Fund generally expects to maintain significant short positions in equity securities and equity-related instruments. In certain circumstances, these short positions may approach or reach the size of the overall long position. The use of both long and short positions better enables the Fund to seek to produce returns that are uncorrelated to those available by investing in the market as a whole. A long position arises where the Fund holds a security in its portfolio or maintains a position through a derivative instrument that provides economic exposure similar to direct ownership of the security. The Fund will have a short position where it sells a security it does not own by delivery of a borrowed security or has entered into a derivative instrument that provides economic exposure similar to a short sale of the security. The Fund takes long positions primarily in securities that BlackRock has identified as attractive and short positions in such securities that BlackRock has identified as overvalued or poised for underperformance.

The Fund may invest up to 20% of its assets in equity instruments issued by or based on companies located outside of emerging markets. When consistent with the Fund’s investment objective, these investments may include short-term investments such as cash and cash equivalents, U.S. Government and agency securities, money market funds (including funds that may be affiliated with or sponsored or managed by BlackRock), commercial paper, certificates of deposit and other bank deposits and bankers’ acceptances.

Equity instruments consist of:

■	Derivative securities or instruments such as options, futures, contracts for difference, forward contracts and swaps (including interest rate swaps and total return swaps), the value of which is based on a common stock or group of common stocks. A contract for difference offers exposure to price changes in an underlying security without ownership of such security, typically by providing investors the ability to trade on margin. The Fund may utilize derivative instruments as a significant part of its strategy.
■	Common stock
■	Depositary receipts

The Fund may engage in active and frequent trading of portfolio securities to achieve its primary investment strategies.

Principal Risks of Investing in the Fund

Risk is inherent in all investing. The value of your investment in the Fund, as well as the amount of return you receive on your investment, may fluctuate significantly from day to day and over time. You may lose part or all of your investment in the Fund or your investment may not perform as well as other similar investments. The following is a summary description of principal risks of investing in the Fund.

■	Depositary Receipts Risk — The issuers of unsponsored depositary receipts are not obligated to disclose information that is, in the United States, considered material. Therefore, there may be less information available regarding these issuers and there may not be a correlation between such information and the market value of the depositary receipts. Depositary receipts are generally subject to the same risks as the foreign securities that they evidence or into which they may be converted.
■	Derivatives Risk — The Fund’s use of derivatives may reduce the Fund’s returns and/or increase volatility. Volatility is defined as the characteristic of a security, an index or a market to fluctuate significantly in price within a short time period. A risk of the Fund’s use of derivatives is that the fluctuations in their values may not correlate perfectly with the overall securities markets. Derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligation. The possible lack of a liquid secondary market for derivatives and the resulting inability of the Fund to sell or otherwise close a derivatives position could expose the Fund to losses and could make derivatives more difficult for the Fund to value accurately. Valuation may be more difficult in times of market turmoil since many investors and market makers may be reluctant to purchase complex instruments or quote prices for them. Derivatives also may expose the Fund to greater risk and increase its costs. Certain transactions in derivatives involve substantial leverage risk and may expose the Fund to potential losses that exceed the amount originally invested by the Fund. Recent legislation calls for new regulation of the derivatives markets. The extent and impact of the regulation is not yet known and may not be known for some time. New regulation may make derivatives more costly, may limit the availability of derivatives, or may otherwise adversely affect the value or performance of derivatives. Certain aspects of the tax treatment of derivative instruments, including swap agreements, are currently unclear and may be affected by changes in legislation, regulations or other legally binding authority that could affect the character, timing and amount of the Fund’s taxable income or gains and distributions.
	Risks Specific to Certain Derivatives Used by the Fund
	Swaps — Swap agreements are two-party contracts entered into for periods ranging from a few weeks to more than one year. In a standard “swap” transaction, two parties agree to exchange the returns (or differentials in rates of return) earned or realized on particular predetermined investments or instruments, which can be adjusted for an interest factor. Swap agreements involve the risk that the party with whom the Fund has entered into the swap will default on its obligation to pay the Fund and the risk that the Fund will not be able to meet its obligations to pay the other party to the agreement. The income tax treatment of swap agreements is unsettled and may be subject to future legislation, regulation or administrative pronouncements issued by the Internal Revenue Service. If such future guidance limits the Fund’s ability to use derivatives, the Fund may have to find other ways of achieving its investment objective.
	Forward Foreign Currency Exchange Contracts — Forward foreign exchange transactions are over-the-counter contracts to purchase or sell a specified amount of a specified currency or multinational currency unit at a price and future date set at the time of the contract. Forward foreign currency exchange contracts do not eliminate fluctuations in the value of non-U.S. securities but rather allow the Fund to establish a fixed rate of exchange for a future point in time. This strategy can have the effect of reducing returns and minimizing opportunities for gain.
	Contracts for Difference — Contracts for difference are subject to liquidity risk because the liquidity of contracts for difference is based on the liquidity of the underlying instrument, and are subject to counterparty risk, i.e., the risk that the counterparty to the contracts for difference transaction may be unable or unwilling to make payments or to otherwise honor its financial obligations under the terms of the contract. To the extent that there is an imperfect correlation between the return on the Fund’s obligation to its counterparty under the contract for difference and the return on related assets in its portfolio, the contracts for difference transaction may increase the Fund’s financial risk. Contracts for difference, like many other derivative instruments, involve the risk that, if the derivative security declines in value, additional margin would be required to maintain the margin level. The seller may require the Fund to deposit additional sums to cover this, and this may be at short notice. If additional margin is not provided in time, the seller may liquidate the positions at a loss for which the Fund is liable. Contracts for difference are not registered with the Securities and Exchange Commission (the “SEC”) or any U.S. regulator, and are not subject to U.S. regulation.

	To the extent derivatives are utilized to implement the Fund’s investment strategies, the transactions may involve the risks described below with respect to investments in emerging market equity securities and short sales of securities.
■	Emerging Markets Risk — Emerging markets are riskier than more developed markets because they tend to develop unevenly and may never fully develop. Investments in emerging markets may be considered speculative. Emerging markets are more likely to experience hyperinflation and currency devaluations, which adversely affect returns to U.S. investors. In addition, many emerging securities markets have far lower trading volumes and less liquidity than developed markets.
■	Equity Securities Risk — Stock markets are volatile. The price of an equity security fluctuates based on changes in a company’s financial condition and overall market and economic conditions.
■	Foreign Securities Risk — Foreign investments often involve special risks not present in U.S. investments that can increase the chances that the Fund will lose money. These risks include:

■	The Fund generally holds its foreign securities and cash in foreign banks and securities depositories, which may be recently organized or new to the foreign custody business and may be subject to only limited or no regulatory oversight.
■	Changes in foreign currency exchange rates can affect the value of the Fund’s portfolio.
■	The economies of certain foreign markets may not compare favorably with the economy of the United States with respect to such issues as growth of gross national product, reinvestment of capital, resources and balance of payments position.
■	The governments of certain countries may prohibit or impose substantial restrictions on foreign investments in their capital markets or in certain industries.
■	Many foreign governments do not supervise and regulate stock exchanges, brokers and the sale of securities to the same extent as does the United States and may not have laws to protect investors that are comparable to U.S. securities laws.
■	Settlement and clearance procedures in certain foreign markets may result in delays in payment for or delivery of securities not typically associated with settlement and clearance of U.S. investments.

■	High Portfolio Turnover Risk — The Fund may engage in active and frequent trading of its investments. High portfolio turnover may result in increased transaction costs to the Fund, which may be mitigated to the extent such turnover is of certain types of derivative instruments. It may also result in a change in the Fund’s market exposure over short periods of time. High portfolio turnover may also result in the realization and distribution to shareholders of higher gains or losses as compared to a fund with less active trading policies and could increase an investor’s tax liability unless shares are held through a tax-deferred or exempt vehicle. These effects of higher than normal portfolio turnover may adversely affect Fund performance.
■	Leverage Risk — Some transactions may give rise to a form of economic leverage. These transactions may include, among others, derivatives, and may expose the Fund to greater risk and increase its costs. As an open-end investment company registered with the SEC, the Fund is subject to the federal securities laws, including the Investment Company Act of 1940, as amended (the “Investment Company Act”), the rules thereunder, and various SEC and SEC staff interpretive positions. In accordance with these laws, rules and positions, the Fund must “set aside” liquid assets (often referred to as “asset segregation”), or engage in other SEC- or staff-approved measures, to “cover” open positions with respect to certain kinds of instruments. The use of leverage may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet any required asset segregation requirements. Increases and decreases in the value of the Fund’s portfolio will be magnified when the Fund uses leverage.
■	Market Risk and Selection Risk — Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. Selection risk is the risk that the securities selected by Fund management will underperform the markets, the relevant indices or the securities selected by other funds with similar investment objectives and investment strategies. This means you may lose money.
■	Short Sales Risk — Because making short sales in securities that it does not own exposes the Fund to the risks associated with those securities, such short sales involve speculative exposure risk. The Fund may incur a loss as a result of a short sale if the price of the security increases between the date of the short sale and the date on which the Fund replaces the security sold short. Short sale transactions involve leverage because they can provide investment exposure in an amount exceeding the initial investment.

■	Small Cap and Emerging Growth Securities Risk — Small cap or emerging growth companies may have limited product lines or markets. They may be less financially secure than larger, more established companies. They may depend on a more limited management group than larger capitalized companies.

Performance Information

The information shows you how the performance of the Fund has varied for the periods since inception and provides some indication of the risks of investing in the Fund. The table compares the Fund’s performance to that of the BofA Merrill Lynch 3-Month U.S. Treasury Bill Index. As with all such investments, past performance (before and after taxes) is not an indication of future results. Sales charges are not reflected in the bar chart. If they were, returns would be less than those shown. However, the table includes all applicable fees and sales charges. If BlackRock and its affiliates had not waived or reimbursed certain Fund expenses during these periods, the Fund’s returns would have been lower. Updated information on the Fund’s performance, including its current net asset value, can be obtained by visiting http://www.blackrock.com/funds or can be obtained by phone at (800) 882-0052.

Investor A Shares

ANNUAL TOTAL RETURNS

BlackRock Emerging Markets Long/Short Equity Fund
As of 12/31

During the one-year period shown in the bar chart, the highest return for a quarter was 3.62% (quarter ended March 31, 2012) and the lowest return for a quarter was 0.97% (quarter ended December 31, 2012). The year-to-date return as of September 30, 2013 was 0.47%.

As of 12/31/12 Average Annual Total Returns	1 Year	Since Inception (October 6, 2011)
BlackRock Emerging Markets Long/Short Equity Fund — Investor A
Return Before Taxes	1.62%	1.09%
Return After Taxes on Distributions	1.52%	0.96%
Return After Taxes on Distributions and Sale of Shares	1.06%	0.85%
BlackRock Emerging Markets Long/Short Equity Fund — Investor C
Return Before Taxes	5.48%	4.81%
BlackRock Emerging Markets Long/Short Equity Fund — Institutional
Return Before Taxes	7.59%	5.89%
BofA Merrill Lynch 3-Month U.S. Treasury Bill Index (Reflects no deduction for fees, expenses or taxes)	0.11%	0.09%

After-tax returns are calculated using the historical highest individual Federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on the investor’s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. After-tax returns are shown for Investor A Shares only, and the after-tax returns for Investor C and Institutional Shares will vary.

Investment Manager

The Fund’s investment manager is BlackRock Advisors, LLC (previously defined as “BlackRock”). The Fund’s sub-adviser is BlackRock Fund Advisors (the “Sub-Adviser”). Where applicable, “BlackRock” refers also to the Sub-Adviser.

Portfolio Managers

Name	Portfolio Manager of the Fund Since	Title
Jeff Shen, PhD	2011	Managing Director of BlackRock, Inc.
Rodolfo Martell	2011	Director of BlackRock, Inc.

Purchase and Sale of Fund Shares

You may purchase or redeem shares of the Fund each day the New York Stock Exchange is open. To purchase or sell shares you should contact your Financial Intermediary, or, if you hold your shares through the Fund, you should contact the Fund by phone at (800) 441-7762, by mail (c/o BlackRock Funds, P.O. Box 9819, Providence, Rhode Island 02940-8019), or by the Internet at www.blackrock.com/funds. The Fund’s initial and subsequent investment minimums generally are as follows, although the Fund may reduce or waive the minimums in some cases:

	Investor A and Investor C Shares	Institutional Shares
Minimum Initial Investment	$1,000 for all accounts except: • $250 for certain fee-based programs. • $100 for certain employer-sponsored retirement plans. • $50, if establishing an Automatic Investment Plan.	$2 million for institutions and individuals. Institutional Shares are available to clients of registered investment advisers who have $250,000 invested in the Fund.
Minimum Additional Investment	$50 for all accounts (with the exception of certain employer-sponsored retirement plans which may have a lower minimum).	No subsequent minimum.

Tax Information

The Fund’s dividends and distributions may be subject to Federal income taxes and may be taxed as ordinary income or capital gains, unless you are a tax-exempt investor or are investing through a retirement plan, in which case you may be subject to Federal income tax upon withdrawal from such tax-deferred arrangements.

Payments to Broker/Dealers and Other Financial Intermediaries

If you purchase shares of the Fund through a Financial Intermediary, the Fund and BlackRock Investments, LLC, the Fund’s distributor, or its affiliates may pay the Financial Intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the Financial Intermediary and your individual financial professional to recommend the Fund over another investment. Ask your individual Financial Intermediary or visit your Financial Intermediary’s website for more information.

INVESTMENT COMPANY ACT FILE # 811-05742

SPRO-EMLSE-1113