Spike's Tactical STS1515 Stripped Upper and Lower Receiver Set .223 Remington Gun Metal Grey AR-15 Receiver Set

A: If you are planning to build a new modern sporting rifle, this AR-15 stripped upper and lower receiver set from Spikes Tactical is a great place to start. The lower is the same lower that all Spikes ST-15 LE rifles are built upon and features a prominent Spikes Spider on the left side of the mag well. It is milled from a 7075-T6 forging and has bullet pictograms for the selector markings. The upper is also machined from a 7075-T6 forging, and has laser engraved T-marks and M4 feed ramps cut prior to anodizing. Specifications and Features: Precision CNC machined from 7075-T6 aluminum alloy Type III hard coat anodized Caliber marked MULTI Bullet pictogram selector markings Pre-installed forward assist and ejection port door cover Laser engraved T-marks M4 feed ramps Grey

A: Yes it is Pre-installed forward assist and ejection port door cover Specifications and Features: Precision CNC machined from 7075-T6 aluminum alloy --- Type III hard coat anodized --- Caliber marked MULTI --- Bullet pictogram selector markings --- >>>>>>>>>>Pre-installed forward assist and ejection port door cover --- Laser engraved T-marks --- M4 feed ramps --- Grey