Shop Today | Spike's Tactical ST5BG01 HPT/MPI M16 Bolt Carrier Group 223 Rem/5.56

Specifications

Weight—-11.3 ounces

Material—-Mil-Spec 8620 tool steel bolt carrier with Carpenter No. 158 bolt

WARNING: This product can expose you to chemicals including arsenic, which is known to the State ofCalifornia to cause cancer. For more information, go toWWW.P65WARNINGS.CA.GOV

Product Overview

The Spike’s Tactical ST5BG01 HPT/MPI M16 bolt carrier group is built for reliable AR-15 and M16 pattern function with 223 Remington / 5.56 NATO ammunition. It features a Mil-Spec 8620 tool steel carrier and a Carpenter No. 158 bolt, finished with MIL-STD-171 phosphate for corrosion resistance and hard chrome in the appropriate areas for durability.

Key Features

• Mil-Spec 8620 tool steel M16 bolt carrier with MIL-STD-171 phosphate finish inside and out
• Carpenter No. 158 bolt with MIL-STD-171 phosphate finish inside and out
• Individually High Pressure Tested (HPT) and Individually Magnetic Particle Inspected (MPI) for consistent quality
• M16 bolt carrier built with properly staked carrier key using Grade 8 hardware
• MIL-Spec extractor system with black extractor spring insert and Mil-Spec Viton O-ring
• MIL-Spec hard chrome firing pin and MIL-Spec phosphate cam pin and firing pin retaining pin

A strong choice for shooters building or upgrading an AR-15/M16 platform with an HPT/MPI-certified bolt carrier group.