If there is anything in your cart, it will not be brought over to the old site.

FREE SHIPPING On all Magpul parts & accessories - Shop now

FREE SHIPPING On all Magpul parts & accessories - Shop now

CMMG AR-15/M16 300 BLK BARRELS

Barrel Length

16.00
12.50
8.20

AR15 8.2" 300BLK MR Barrel

Brownells #

100014824

MFR #

30D810A

UPC

815835016283

$149.99

Purchase Limit

Out of Stock

NOTIFY ME WHEN IT'S BACK IN STOCK

Can we ship this to you?

How To Buy Guns Online

International purchase information

Specifications

Twist:

1-7

Barrel Contour:

Medium

Barrel Length:

8.20

Cartridge:

300 AAC Blackout

Gas Block Diameter:

0.750 Inches

Color:

Black

Gas System Length:

Pistol

Item Length (Inches):

8.200

Make Model Fit:

AR-15.Universal

Muzzle Threads:

5/8"x24

Restriction

Restricted Part:

Yes

Prop 65 restriction:

Warning! Cancer and Reproductive Harm. Www.p65warnings.ca.gov

Can we ship this to you?

How To Buy Guns Online

International purchase information

Description

Direct replacement for the standard .223/5.56mm barrel converts your AR-15 to the high-performance 300 AAC Blackout (300BLK) cartridge. The 300 AAC lets you upgrade your rifle to 7.62 x 39 ballistics, while retaining the standard AR-15/M16 bolt, carrier, and magazine at its full capacity, with no additional modifications. 1-7" rifling accepts bullet weights from 110 gr to 220 gr, and 5/8"-24 muzzle threads accept popular AR-.308 flash suppressors and muzzle brakes. Three models available, 16", 12.5" and 8.2" long and treated inside and out with CMMG’s "Wasp" nitriding process for outstanding resistance to wear and corrosion. 16" barrel has the gas port in the standard position for use with all M4-length gas systems and supersonic ammunition. 12.5" & 8.2" barrels have the gas port positioned for use with pistol-length gas systems.

SPECS: Hardened 4140 chrome-moly steel, Wasp nitride finish, matte black .750" O.D. at gas port.5/8-24 muzzle threads.

Restricted Part
Please check with your state regulations for ownership of Restricted Parts. May require documentation.

WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov

Available options:

100009125 100014823 100014824

Please select a FFL Dealer

7 dealers near

No dealers found

Please search by another zipcode to find the nearest dealer.

Brownells Retail Store

You must select required check box

Note:

Listed hours & fees are not guaranteed and subject to change. Please contact the dealer to confirm current hours & fees.

* Must accept required fields.

Brownells Featured Dealers

Choosing a Brownells Featured Dealer is the fastest and easiest way to complete your purchase. Brownells Featured Dealers have agreed to perform FFL transfers on guns purchased online from Brownells. We have their necessary FFL information on file and your FFL order will ship directly to them once processed.
Standard Dealers

Standard Dealers have not yet agreed to perform FFL transfers on guns purchased online from Brownells. If you choose a Standard Dealer, you are responsible for contacting that dealer and arranging for the dealer to submit a signed copy of an FFL and to give Brownells permission to ship the gun.
Not Available Dealers

Not Available Dealers are dealers Brownells cannot ship guns to at this time. These dealers either do not meet our requirements for FFL transfers, or prefer to not perform transfers for guns purchased online from Brownells.

7 dealers near

View Suppressors	View AR-15 Parts
View 1911 Parts	View Parts for Glock
View Parts for Ruger 10/22	View Schematics

CMMG AR-15/M16 300 BLK BARRELS

Add To Favorite

Pin in Brownells Featured Dealers

Pin in Standard Dealers

Pin in Not Available Dealers

Brownells Featured Dealers

Standard Dealers

Not Available Dealers