Items Available For Purchase Today Object reference not set to an instance of an object. See All Gas Block- SLR Rifleworks Sentry 7 For Sale from: Twenty1sun | No feedback Yet View | Verified Seller | 4 Completed Sales View Sellers Items Gas Block- SLR Rifleworks Sentry 7 For Sale from: Twenty1sun | No feedback Yet View | Verified Seller | 4 Completed Sales View Sellers Items Twenty1sun Seller Since: Apr. 2009 Identity Verified ( Coconut Creek, FL ) This seller is NOT an FFL City: Jacksonville State: FL SOLD - $75.00 Shipping: See Description Accepted Payment Methods: Returns: 3 Days Description: Gas Block- SLR Rifleworks Sentry 7 Adjustable Gas Block. Almost new- only 300 rounds through it. With all factory packaging and parts, including all tools, extra metering screw, extra plunger, and extra spring. Selling it because I instead went with a heavy buffer and extra power spring in my setup. .750 inside diameter - 15-position adjustability from 0 - .125" port opening - Metering screw and screw bore design allows repeatability and reliability only SLR has been able to deliver - Single tool click to adjust gas metering - Melonite finish 4140 Precision machined gas block - Melonite finish 4140 Nexturn Swiss precision metering screw - Stamped Alloy Flat Spring with 1400deg temper - Melonite finish 4140 detent plunger - USES STANDARD GAS TUBE Free shipping to anywhere in the U.S. Condition: Used, As New Brand: SLR Rifleworks Model: SA7-CM Item #: 987511689 UPC: 810646034679 Location: FL Trades Accepted: Yes. Share: Shipping Notes: Free shipping anywhere in the U.S.A. Items You've Viewed Recently Gas Block- SLR Rifleworks Sentry 7 $75.00 SELLER: Twenty1sun Add To Cart