AR-15 Barrel Extension

Our brand new, MIL-SPEC AR-15 barrel extension is guaranteed to fit in your MIL-SPEC AR-15 while offering optimal performance. Each AR-15 barrel extension features a stainless finish and is heat treated to protect against rust and corrosion, and is precision machined to exacting standards with integral feed ramps and a pre-drilled locator pin hole.

In stock

SKU N9339054

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American Owned and Operated


20+ Years In Business

Returns Accepted

Ships from Pennsylvania


The AR-15 barrel extension is, as are all of our house brand spare and replacement parts for the AR-15 platform, a brand new part produced in a state-of-the-art manufacturing facility that holds several foreign military contracts. As such, all parts are compatible with and interchangeable in any MIL-SPEC AR-15.

Located at the receiver end of the barrel, the AR-15 barrel extension is a small steel extension that typically comes pre-installed on all AR-15 barrels, unless otherwise stated. For those with the necessary tooling and knowledge to install their own AR-15 barrel extension on a barrel, both pieces may be purchased separately. The AR-15 barrel extension is significant due to its integral feed ramps, which aid in the insertion of cartridges into the chamber, especially when done at high rates of speed such as in automatic firearms.

Spare and replacement parts are an important consideration when it comes to firearms. Like any machine, firearms rely on a series of parts to function properly – especially those components that make up the upper receiver. In general, if a part breaks or fails, a repair or replacement becomes immediately necessary – not only to keep a firearm functioning properly but also to ensure the safety of yourself and those around you.

It is also important to consider availability when discussing spare and replacement parts. At this time, is seeking to provide our customers with a wide selection of spare and replacement parts for the AR-15 platform. Several brand new parts from the house brand are now readily available on our website at an affordable price. If you have any need or desire for spare or replacement parts, now would be a good time to take advantage of this offering.

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Customer Reviews

Good Price
Review by Ashwin W.
Verified Buyer
Received in three days after buying. Will be back to shop at keepshooting again!
Good Website
Review by Orson B.
Verified Buyer
These AR15 barrel extension are good. Would absolutely buy again.
Great Spare Part A++
Review by Georgie D.
Verified Buyer
Drop In spare barrel extension for my AR15.
Great Deal
Review by Tomer P.
Verified Buyer
Very Satisfied
Review by Tina O.
Verified Buyer
Finest AR15 barrel extension for the buck from a awesome company. Thank you ks!
Great for my use
Review by Rueben B.
Verified Buyer
Received in four days after placing my order. Will be back to buy from KS again!
Good for my use
Review by Earnest C.
Verified Buyer
Finest AR15 barrel extension for the price from a awesome company. Thank you ks!
First-Rate Spare Part 5*
Review by Markise C.
Verified Buyer
Best price anywhere that was online. Delivery was fast via UPS.
Review by Tom U.
Verified Buyer
Cheapest price I could find that was online. Delivery was fast with Fedex.
Excellent Deal
Review by Shaheem O.
Verified Buyer
The AR15 barrel extension are awesome. Would buy again.
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