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AR-15 BROWNELLS 9MM BOLT CARRIER GROUP Reviews & Ratings

AR-15 BROWNELLS 9MM BOLT CARRIER GROUP

The Brownells 9mm AR-15 Bolt Carrier Group is specifically designed for use in pistol-caliber carbines, which are a growing trend in the AR-15 world. This bolt-carrier group allows AR builders to custom-make their own 9mm AR. The Brownells 9mm AR-15 Bolt Carrier Group is constructed entirely from a single piece of steel billet and features a pinned weight that can be taken out for compatibility with different buffer systems.

Compatible with both Glock®and Colt magazines
Features complete nitride treatment for reduced friction

The Brownells 9mm AR-15 Bolt Carrier Group also features a captured firing pin in order to prevent the possibility of slam fires.

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4 Stars

2 Stars

Reviews Summary

Overall, customers have a mix of experiences with the AR-15 Brownells 9mm Bolt Carrier Group. Many report excellent performance and compatibility with various setups, while a few express concerns about fit and design issues affecting functionality. Overall, sentiment leans positively, but there are notable concerns from some users.

What Reviewers Are Saying

Performance and Compatibility

67%

A significant number of reviewers appreciate the performance of the bolt carrier group, noting that it works well with multiple setups and exhibits reliable extraction and feeding. Many found it to function smoothly with their chosen components.

Design and Fit Issues

33%

Some users raised concerns regarding the design of the bolt, mentioning specific fit issues with common AR designs that complicated installation and operation. These issues impact overall satisfaction for those affected.

Build Quality

33%

Several reviewers praised the build quality and finish of the product, highlighting features such as nitride finishes and heavy weights that contribute to a smooth operation. While most find it durable, minor alterations are suggested by a few.

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Not happening

The picture and Q&A both show/say this bolt is ramped so it can be used with a 'regular' AR/M16/M4 ect style trigger assembly. The part received does have a very minor ramp but nothing even close to the ramped bolt that CMMG uses... Installed into the firearm it was intended for and sure enough it is hitting/hanging up on the hammer on the forward stroke. Borrowed the bolt from my other AR-9mm (CMMG MK9-LE) and installed into the gun in question, as expected it works fine. Both firearms have the same trigger assembly, same lower ect.. This Brownells bolt looks to be made for use ONLY with a 'dedicated' style 9mm hammer. Up until now I have had nothing but praise for this company, I hope a short phone call tomorrow will get this resolved.