Skip to content Skip to footer
-21%

BCM BCG 5.56 AR-15 Bolt Carrier Group + Upper Receiver Assembly M4/AR15

Original price was: $379.99.Current price is: $299.99.

BCM Bolt Carrier Group:

The Bravo Company Manufacturing (BCM) M16 AR-15 Bolt Carrier Group (BCG) is a top-quality component that ensures reliable and consistent performance for AR15, M16, or M4 platforms. With precise craftsmanship and adherence to MIL-SPEC standards, this BCG is trusted by professionals and enthusiasts alike.

This complete bolt carrier group comes fully assembled.

The bolt assembly is crafted from MIL-SPEC Carpenter No. 158 steel, known for its exceptional strength and durability. It undergoes shot peening for increased toughness and longevity. The bolt is high pressure tested (HPT) and magnetic particle inspected (MPI) to ensure it meets the highest standards of quality and safety. The extractor, ejector, and BCM extractor spring are machined from tool steel, further enhancing reliability and longevity.

Upper Receiver Assembly:

Precision machined to correct Mil-Specs from 7075 T6 Forgings extension, providing the user with superior strength when dropped or when mortaring malfunction clearance drills.

Fully Assembled with forward assist, and ejection port cover

Mil-Std 1913 Rail for mounting optics and accessories

Machined for use with barrels that use an M4 barrel extension

Includes Mil-Spec Forward Assist with heat treated tool steel pawl, with press fit and pinned cap

Hard Coat Anodized per Mil-A-8625F, Type III, Class2

Dry Film Lube on interior bore per Mil-Specs

As with all BCM® products, Made in the U.S.A.

8 in stock

SKU: BCM-BCG-AUTO-1 Categories: , , , , , Tags: , Brand: Product ID: 21136

Description

BCM Bolt Carrier Group:

  • Bolt Material: Carpenter 158 Steel
  • Brand: Bravo Company Manufacturing
  • Caliber Gauge: 5.56 NATO
  • Carrier Material: 8620 Carpenter Steel
  • Carrier Style: M16 Bolt Carrier
  • High Pressure Tested: High Pressure Tested
  • Magnetic Particle Inspected

Upper Receiver Assembly:

  • Fully Assembled with forward assist, and ejection port cover
  • 7075 high grade aluminum forging
  • Military spec hard coat anodizing
  • dry lube interior
  • M4 feed ramps
Ready to get started?

Uncompromising Quality for Your Rifle.

Address

3801 PGA Blvd STE 602
Palm Beach Gardens, FL 33410

Say Hello

info@556fanatics.com

Socials
Newsletter

556fanatics.com © 2026. All Rights Reserved.