AR - Rimfire conversion and 1:16 barrel

[Jeff Porter]

I have a like new (about 100 rounds) CMMG Bravo conversion kit with 2-30 round size magazines. This has the chamber insert if you want to shoot in your .223/5.56 barrel.

BUT - I also have an older high round count Pre- Ban Green Mountain 1:16 20" SR profile rimfire barrel that has the chamber cut into the barrel to accept the CMMG unit without the insert. Just put the feed ramp ring on the barrel at the back of the " barrel extension”.

$275 delivered to CONUS for CMMG Bravo conversion, 2-30 round size magazines, 1:16 Green Mountain SS 20" rimfire barrel with rimfire adapter in the barrel extension.

All you need is the upper receiver and a float tube/handguard.

 

[249xxxxxx]

Have you used the barrel? Any issue with feeding or extraction if you did have this set up as a functioning upper.
Thanks chad

 

[Jeff Porter]

No issues when I used it with a Ciener or CMMG kit It has been sitting on my shelf for years since I went to a Keystone custom barrel for AR rimfire.