8" 300BLK Complete Low Profile Piston Upper with A.P. 12" M-Lok Handguard

A: We do not regulate our 300BLK. You can read more at our blog as to why the 300BLK do not need to be regulated: https://www.blackriflearms.com/Our-300BLK-dont-need-to-be-regulatedSEE-WHY_b_14.html

A: You could use the Strikes Industries PDW Viper stock and utilize our Enhanced Buffer, Spring & Buffer Tube Assemblies for Viper PDW Stocks & Braces - Gen 2. It's what we use and share a pic of our set up; however, the buffer tube in the page picture shows the Gen1 buffer tube we have since changed the design but hold the same tolerances. https://www.blackriflearms.com/Enhanced-Buffer-Spring-Buffer-Tube-Assemblies-for-Viper-PDW-Stocks-Braces--Gen-2_p_732.html

A: We are expecting restock of all our uppers around end of summer. Barrels are in production now and waiting on nitride and barrel extensions are at NiB waiting on plating so almost there.

A: Our piston systems are patented by our owner, so our bolt carriers, gas blocks etc are manufactured by us. In a 300BLK you do not need to regulate the system. All of our piston systems can run full auto (we R&D, etc only using full auto and we suppress also). All our systems can be used full auto with no issues. Charles uses OSS and Dead Air Silencers. You may learn more about our 300BLK by going to our piston video page and scrolling down to 300BLK Piston Video: https://blackriflearms.com/PISTON-VIDEOS_ep_40.html