Foxtrot Mike 9" .223 Wylde Lightweight Pistol M-LOK Complete Upper

Foxtrot Mike 9" .223 Wylde Lightweight Pistol M-LOK Complete UpperThe Foxtrot Mike Products FM-15 Gen 2 Side Charging AR-15 Upper Receiver features a unique dual-spring recoil system nested in the top of the upper receiver, allowing for the use of a folding stock. This recoil system is paired with a mid-length direct impingement gas system and a proprietary, lightweight bolt carrier group, resulting in a smooth and reliably functioning rifle. The 3-position adjustable gas block features an indexing pin and a coil pin to keep it locked in place against the lightweight, contoured barrel, providing an extremely robust system.Features Machined from a billet of aluminum 4 Position side charging handle Slim M-LOK handguard .223 Wylde chambering Proprietary lightweight BCG Picatinny rail adapter with QD sling mount 9" barrel 3 Position adjustable gas block Carbine gas system Compatible with Mil-Spec lowers (buffer and buffer spring will not be used)The barrel features a .223 Wylde chamber and a 1:8 twist rate for compatibility with a wide range of ammunition. Additionally, it features a lightweight contour and is 9 inches in length.