SPIKE'S TACTICAL Billet Gen 2 Mil-Spec Barrel Nut AR Upper (SFT52B2)

The Spike's Tactical Billet Upper Gen II Receiver is not just another different cosmetic alternative to forged upper receivers but it's actually designed with functional upgrades that aren't available on other billet upper receivers! They have updated this model with more pockets to lighten it. It is machined out of 7075 billet aluminum and finished off in a durable Type III Hardcoat anodized. Of course, Spike Tactical cut the M4 feed ramps before the anodizing process to avoid reliability issues down the road. Also the side walls of the receiver were flared to eliminate accidental bolt release problems and the upper receiver was machined in a way that lets you use the popular Magpul BAD lever or other aftermarket bolt catch levers which most other billet upper receivers don't let you do.