ALL NFA RULES APPLY. (All Sales Are Final On NFA Items, No Returns) Bushmaster™ has designed our suppressor so that you can maintain your weapon's accuracy.  We have accomplished this by making sure that the concentricity of our suppressors are machined to tight tolerances.  Thus, providing a minimal point of impact shift.  Bushmaster™ utilizes a mixture of different suppressor technologies to promote its custom  baffle design, which helps with felt recoil, flash, and sound reduction. Specs: Legnth: 6.8" Weight: 18.9 ounces 17-4 H1150 stainless steel, Finished with high temp cerakote Full-auto rated Removeable end cap  Thread: 5/8”-24 Diameter: 1.5"  * All NFA RULES APPLY  Made in the U.S.A.