Description
Product Features & Specifications
The Spike’s Tactical ST5BG05 AR15/M4 5.56 Nickel Boron Lightweight BCG Bolt Carrier Group is an improvement over the normal Spike’s Nickel Boron BCG because of the low weight which allows for a lighter rifle and more gasses to pass through when shooting the weapon. Constructed from 8620 Tool Steel (carrier) and 158 Carpenter Steel (bolt) and plated in Nickel Boron for corrosion resistance, this BCG is perfect for shooting any type of ammo without it harming the rifle. This NiB BCG is precision CNC machined in all the right places without affecting function and actually improving performance. NOTE: this BCG will fit all AR15/M4 uppers that use a 5.56 or 300BLK barrel and magazine. It will not work with any other caliber, however the bolt can be replaced with any other AR15/M4 bolt to serve the necessary barrel caliber.Made in USA Precision CNC machined holes allow for lighter weight and more gasses to pass through.Shrouded firing pin allows use of surplus ammoSelf-Lubricating Nickel Boron coating inside and outCarrier laser engraved with Spike’s Tactical spider logoForged Mil-Spec properly staked carrier keyGrade 8 Steel hardwareBolts are shot peened are CNC machinedFull-Auto M16 profileExtractor made of 8620 Tool SteelMil-Spec extractor spring, black extractor insert, Viton O-ringSpike’s Tactical Lifetime Warranty
