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CMMG
AR-15 4.5" BARREL & BOLT GROUP KIT
CMMG AR-15 4.5 BARREL & BOLT GROUP KIT MT 4140CM 22LR
Mfr Part: 22D5B6E 815835016948 In this Barrel and Bolt Group Kit, CMMG provides everything you need to convert your AR-15 into a dedicated .22 LR rimfire training platform. The barrel measures 4.5 inches long and is machined from 4140 chrome-moly steel, complete with a salt-bath nitride finish and a medium-taper profile. The barrel is optimized with a 1:16-inch twist that's compatible with most .22 LR bullets on the market, but the system runs best with 36-grain round-nose bullets. Each .22 LR Barrel and Bolt Group Kit from CMMG also features a .22 LR sporting chamber, as well as a threaded muzzle measuring 1/2-28 TPI thread pitch. CMMG recommends using a round-style hammer in place of a notched hammer to avoid function issues. The only other piece of the kit needed for a functioning system is a dedicated .22 LR magazine.
4 pcs. in the USA warehouse
Restrictions
- Is a 'Call to order' product.
Top takeaways
- The kit includes a 4.5-inch 4140 chrome-moly steel barrel with a salt-bath nitride finish, optimized for .22 LR with a 1:16 twist rate.
- It comes with a .22 LR bolt group and is designed to convert an AR-15 into a .22 LR rimfire training platform.
- The barrel features a 1/2-28 TPI threaded muzzle and requires a dedicated .22 LR magazine and round-style hammer for proper function.
Attributes
Cartridge: 22 Long Rifle Contour: Medium Finish: Black Length: 4.5'' Make: AR-15 Muzzle Threads: 1/2-28 Twist: 1-16 Delivery weight: 0.522kg
Item details
US export classification: 0A501.c
🔫 Upgrade your AR-15 with CMMG's 4.5" Barrel & Bolt Group Kit for a high-quality .22 LR conversion. Precision-crafted, medium-taper profile, 1:16 twist 🎯. Shop now!
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