A 9mm AR pistol might be the most fun of all the ways to shoot one of the most popular calibers. In an AR platform that is more compact and mobile than a full rifle build, you have the same low recoil versatility that 9mm offers. With our 9mm Pistol Upper Build Kit you can build your pistol with little hassle, low cost, and have it set up just the way you want it with all of the options that we keep available for you.
The KAK Industry Big Hole Brake has a single port design that makes it compact. The large port reduces recoil and the dual upward-facing vents minimize muzzle rise. To ensure it is resilient to wear and tear, it has a manganese phosphate coat. It has an overall length of 1.75 inches and it weighs 2.43 ounces.
The Matador Arms Montgo-9 Complete 9mm Upper fits most AR-15/AR-9 Lowers. This upper features a 5.5-inch barrel crafted from 4140 steel with a black nitride finish. Also comes with a non-reciprocating charging handel and no buffer is required. The billet aluminum upper receiver is hardcoat anodized to maximize its strength and durability.