Stock Status: RTB 4.5" .22LR AR Barrel & Stainless Bolt Group Kit
We've combined a RTB stainless steel .22LR bolt group with a .22LR 4.5" barrel to provide everything you'll need for converting your upper to a dedicated .22 long rifle format in one convenient package. The barrel has a 1:16" twist with a ½"-28 TPI muzzle thread and installs in just a few minutes. Add one of our .22LR magazines and you're ready to go!
RTB .22LR products are compatible with all CMMG .22LR products.
Barrel Specs:
RTB .22LR products are compatible with all CMMG .22LR products.
Barrel Specs:
- Length: 4.5"
- 1:16" Twist
- Chamber: 22 Long Rifle
- Material and Finish: 4140 CrMo, Salt Bath Nitride Finish
- Muzzle Thread: 1/2"-28 TPI
- Gas Port Location: none
Bolt Specs:
- Designed to work with all CMMG and RTB .22LR barrels
- Stainless Steel Construction
All NFA/ATF Rules Apply
Depending on your state and local laws, you could use this barrel with a lower receiver that is a Registered SBR, or Pistol. Possession of this barrel along with a Non-NFA lower receiver may be Prohibited. We are not lawyers and the above information is not legal advise. Make sure you understand the most up to date federal, state and local laws before proceeding with this product.
