The Velos LBP uses a low back-pressure technology to reduce overall blowback while maintaining impressive sound suppression. The Velos LBP is constructed of a 3D printed inconel 625 core fully welded to 17-4 stainless steel front and rear modules, making this product unlike anything else on the market. It is also full-auto rated and the most durable suppressor SilencerCo has ever made. The Velos LBP 5.56K suppressor is dedicated for .223 REM / 5.56 NATO calibers. Coupons and discounts do not apply to Silencers.