*Milspec forged aluminum upper receiver with forward assist and dust cover
assembly installed. Matte black hard coat anodized Mil 8625 Type 3 Class 2. M4
feed ramps. Forged from 7075 T6 aluminum.
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” 6.8 SPC (SPEC II) Stainless Steel Barrel with 1x11 twist. 5/8x24 Muzzle Threads. ER Shaw barrels are extremely accurate, high performance barrels with a
long, exceptional reputation for quality.
*.750 Low Profile Gas Block.
*Rifle length Gas Tube.
*A2 Flash Hider with crush washer.
*This upper assembly will fit all standard AR 15 lower receivers.