For sale is a lightly used 18” Proof Research 6mm ARC AR Barrel, also for sale is a SLR sentry 7 set screw gas block and rifle +1 gas tube. The barrel has only 40 rounds through it and is very accurate, I just decided to go a different direction with this build.
Payment via PayPal F&F and will ship within 48 hours of payment.
- 6mm ARC 18"
- 1:7.5 twist
- Stainless Steel
- Rifle +1 Length
- .750" Gas Journal
SLR Sentry 7 set screw adjustable gas block
Barrel: $425 shippedSPFGas Block: $120 shippedSOLD
Payment via PayPal F&F and will ship within 48 hours of payment.
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