Description
RCM HK21 Barrel
At last, the RCM hk21 barrels made from 41V50 CHF blanks have landed! Fully nitrided for the best and long-lasting finish for these wonderful barrels. This is the missing piece for all the HK21 builds and undoubtedly the best barrel on the market. You'll only need to add your own parts included in your HK21 parts kit to complete.
Compatible With:
- HK21
Specifications:
- 41V50 CHF
- 1:10 Twist
- 17.700" Long
- Fully Nitrided
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