Product Details
If you've got an AR15 lower receiver and want to try something different, this upper receiver group swaps right on and gives you a gas-piston system instead of the standard direct impingement - which means less fouling and easier cleanup. It shoots 223 Remington or 5.56 NATO with a 16.25" barrel, and here's the neat part: it accepts standard AR magazines plus SAW drums and belt-fed M27 links if you want to experiment with those. Comes with 100 M27 links to get you started.