Our Rosco Non-Adjustable Gas Blocks are purposely designed to be lined up perfectly with our barrels and gas ports to ensure reliable cycling every time. Our Non-Adjustable gas block is a direct plug in for any one of our barrels and has provisions for pinning. Each Gas Block comes with (2) set screws and (2) roll pins.
Rosco Manufacturing’s “Bloodline” series is our hardest working category. Whether you are an occasional builder, tactical shooter, or Law Enforcement Officer we have a product that will fit your needs. All our Bloodline accessories are designed to take the abuse from unconventional wear and tear that our customer may need to inflict on their platforms. This is the only way that we can make sure that we are producing a product that will perform time after time under the most austere of conditions. We are setting out to re-define the rules and we plan on letting our work do the talking…
Riley Cooper (verified owner) –
Perfect fit on my Bloodline 16″ 5.56 heavy barrel. Most other brand gas blocks do not include pins or even set screws. Rosco includes both! Great design feature with hole to help remove gas tube. The gas block I replaced took quite a bit of convincing to get off the gas tube! Thanks Rosco!
Steve D. (verified owner) –
I like the design but wonder why you drill the holes for the pinning for the barrel when you don’t cut the barrel for it . Other wise everything else is well machined. Like your products.
Marcus Lewis (verified owner) –
A nice solid gas block! Can’t wait to test it out!
Darrell Ericksen (verified owner) –
Perfect fit on the Bloodline 11.5” barrel. 200+ rounds through it and no issues. Definitely going to use a Rosco barrel and gas block on my next build.
Frank Frazer (verified owner) –
Would have given 5 stars but I haven’t completed the rifle yet. I bought this because it is going on an 18” bloodline barrel and I figured the barrel and gas block from the same manufacturer the tolerance stacking would be more precise. All of the machining appears top notch