Picture of CMMG Bolt Carrier Group Mk47 76BA4A3

CMMG Bolt Carrier Group Mk47 76BA4A3

Manufacturer: Cmmg
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SKU: 955314
Manufacturer part number: 76BA4A3
UPC: 810097506954
Availability: 3 in stock
Old price: $324.95
$263.59
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CMMG Bolt Carrier Group Mk47 (76BA4A3) – Premium Performance for AR‑15 Platforms

CMMG Bolt Carrier Group Mk47 (76BA4A3) – UPC 810097506954

The CMMG Bolt Carrier Group Mk47 (model 76BA4A3) is engineered for shooters who demand absolute reliability and precision from every shot. This bolt carrier group (BCG) is a direct‑replace component for standard AR‑15 platforms, offering a seamless fit and flawless operation in both semi‑automatic and fully‑automatic firearms (where legally permitted). Crafted from premium 9310 steel and hardened to industry‑leading specifications, this BCG delivers the durability required for high‑round‑count training, tactical applications, and competitive shooting.

Key Features & Benefits

  • Precision Machined 9310 Steel: Superior strength, wear resistance, and longevity compared to standard mil‑spec steels.
  • Enhanced Gas System Compatibility: Optimized for reliable cycling across a wide range of gas pressures, reducing malfunctions in harsh environments.
  • Full‑Length, Free‑Floating Design: Guarantees consistent bolt travel and reduced friction for smoother operation.
  • Nickel‑Borated Finish: Corrosion‑resistant coating that protects against moisture, salts, and harsh chemicals.
  • Standard AR‑15 Dimensions: Direct drop‑in replacement for any standard AR‑15 upper receiver without the need for modifications.
  • Reduced Felt Recoil: Improved bolt mass distribution helps mitigate recoil impulse, enhancing shooter comfort.
  • Easy Installation: Complete with a full set of pins and a detailed installation guide for quick, tool‑free assembly.
  • UPC: 810097506954: Verified product identifier for streamlined inventory management and ordering.

Technical Specifications

Model Number76BA4A3
ManufacturerCMMG
Material9310 Steel (heat‑treated) with Nickel‑Borated coating
LengthStandard AR‑15 BCG length – 7.5 inches (190.5 mm)
Weight≈ 12.6 oz (357 g)
CompatibilityAll standard AR‑15 uppers, compatible with Mk47 barrel extensions and gas blocks
FinishNickel‑Borated anti‑corrosion coating
UPC810097506954

Ideal Applications

Whether you’re a competitive shooter, a tactical training professional, or a firearms enthusiast who values reliability, the CMMG Bolt Carrier Group Mk47 is built to meet the demands of:

  • High‑volume range sessions
  • Close‑quarter tactical drills
  • Long‑range precision shooting
  • Home defense setups
  • Law enforcement and military training platforms

Why Choose CMMG?

CMMG has a longstanding reputation for delivering firearms components that combine cutting‑edge engineering with proven field performance. Each Bolt Carrier Group undergoes rigorous quality control, ensuring that every unit meets or exceeds original equipment manufacturer (OEM) specifications. By selecting the CMMG Mk47 BCG, you’re investing in a component that enhances the overall reliability, accuracy, and lifespan of your AR‑15 platform.

Installation Overview

  1. Ensure the rifle is unloaded and safe.
  2. Remove the existing bolt carrier group by pushing out the retaining pins.
  3. Insert the new CMMG Mk47 BCG, aligning the gas key with the gas tube.
  4. Secure the group with the supplied pins, ensuring a snug fit.
  5. Perform a function check: charge the rifle, pull the charging handle, and verify smooth bolt travel.
  6. Conduct a live‑fire test to confirm reliable cycling.

A detailed step‑by‑step guide is included in the packaging for users of all experience levels.

Upgrade your AR‑15 with the CMMG Bolt Carrier Group Mk47 (76BA4A3) and experience unmatched reliability and performance on every mission.

The End

Products specifications
SubCategoryBarrels
ManufacturerCmmg
CategoryParts
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