*Milspec forged aluminum upper receiver with forward assist and
dust cover assembly installed. Matte black hard coat anodized Mil 8625 Type 3
Class 2. Forged from 7075 T6 aluminum. M4
*15" M Lok Extended Rifle Length Narrow Profile Free Float
Rail. Very comfortable and very light weight. M Lok slots run the entire length of our rail
at the 3, 6, and 9 o'clock postions. Picatiny rail sections NOT included
but are available for purchase on our website if needed. Rail
sections easily attach to our rails for adding accessories like bipods,
flash lights, grips, lasers, etc.
*ER SHAW CUSTOM 20” 223 Wylde (5.56 and .223 OK) 416R Stainless Steel Bull Barrel with 1x8
twist. Target Crowned but 1/2'-28 threads are available as an option. ER Shaw barrels are extremely accurate, high performance barrels with a long, exceptional reputation for quality.
*.936 low profile steel gas block.
*Rifle Length Gas Tube.
*Standard forward assist.
*This upper assembly will fit all standard AR 15 lower receivers.