RTB 20" .22LR AR Barrel & Stainless Bolt Group Kit
RTB .22LR products are compatible with all CMMG .22LR products.
- Length: 20"
- 1:16" Twist
- Chamber: 22 Long Rifle
- Profile: Gov
- Material and Finish: 4140 CrMo, Salt Bath Nitride Finish
- Muzzle Thread: 1/2"-28 TPI
- Gas Port Location: none
- Designed to work with all CMMG and RTB .22LR barrels
- Stainless Steel Construction