Product Details
This is a complete upper receiver setup built on a shorter 12.5-inch barrel in 6MM ARC - that's a cartridge that hits hard without the kick of larger calibers, making it manageable for most shooters. Everything comes ready to go: the barrel is stainless steel, the bolt is headspaced and ready to install, and the gas block and tube are already pinned in place. It'll fit standard AR platforms, and the 1:7 twist rate stabilizes the bullets nicely. If you want something compact and accurate without fussing with assembly, this one does the work for you.