Spikes Tactical inspects every upper to ensure they are drop-in ready. Continual maintaining high standard of tolerances and attention to detail is the difference between a Spikes Tactical upper and others.

Specifications:
Caliber 5.56 NATO
Aluminum 7075 T6 barrel and nut
Aluminum 6061 T6 Rail
Continuous, full length top rail
Free Floating one piece handguard
Quick detach attachment points
Low profile gas block
Solid Billet Steel
Forged aluminum, Mil-Spec type 3 coating
Charging Handle
Black nitride inside and out
Mid length gas tube
Gas tube roll pin
A2 Flash hider
1/2" Crush washer
Phosphate coated M16 complete BCG
Laser engraved with Spikes Tactical spider logo