WMD Guns AR-15/M16/M4 Bolt Carrier Group BCG 5.56 NiB-X Purple

Name: WMD Guns AR-15/M16/M4 Bolt Carrier Group BCG 5.56 NiB-X Purple
Brand: WMD Guns
Availability: InStock

WMD Guns · Bolt Carrier Group

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Best price

$163.99at OpticsPlanet

In stock Sale checked Oct 13, 2026

Buy at OpticsPlanet

Where to buy

Store	Price	Availability	Buy	Add to build
OpticsPlanet	$163.99Salechecked Oct 13, 2026	In stock	Buy at OpticsPlanet

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Price history

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Lowest in-stock price in the last 30 days: $159.99 at OpticsPlanet. Dashed line = out of stock. Tracking since Oct 12, 2026.

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Store	Latest	Lowest	Highest
OpticsPlanet	$163.99	$159.99	$163.99

Since Oct 12, 2026.

About this part

The WMD Guns AR-15/M16/M4 Bolt Carrier Group BCG 5.56 NiB-X Purple is a 5.56 / .223 bolt carrier group from WMD Guns. One store lists it, OpticsPlanet at $163.99. The lowest in-stock price in the last 30 days was $159.99 at OpticsPlanet.

Fits and works with

Caliber: 5.56 / .223 · Shop matching ammo
Bolt: Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups

Specifications

Manufacturer: WMD Guns
Platform: AR-15
Caliber: 5.56 mm NATO
Finish: Nickel Boron

From the manufacturer

WMD Guns AR-15/M16/M4 Bolt Carrier Group BCG 5.56 NiB-X Purple. Specifically engineered for NiB-X nickel boron coating to provide long life high reliability and easy cleaning and maintenance. Coating is guaranteed for life against chipping spalling or flaking. Over 30K rounds in Government protocol endurance testing did not wear the coating off. The Matte version of our BCG is our same NiB-X coating in a bead blasted look. Specifications for WMD Guns M16/AR-15 Full Auto Bolt Carrier Group (BCG) - NiB-X Nickel Boron w/ Ceramic TopCoat: Manufacturer: WMD Guns Finish: NiB-X Fabric/Material: 8620 Alloy Steel 9310 Steel Carrier Material: 8620 Steel Bolt Material: 9310 Steel Caliber: 5.56x45mm NATO Gun Make: AR Platform Gun Model: M16 M4 AR-15 Condition: New Features of WMD Guns M16/AR-15 Full Auto Bolt Carrier Group BCG - NiB-X Nickel Boron w/ Ceramic TopCoat: Bolt - Case hardened 9310 shot peened magnetic particle inspected with high-performance extractor ejector springs gas rings and special O-ring buffer. Extractor - Manufactured heat-treated and hardened per government drawings. NiB-X coated. Firing Pin - Manufactured heat-treated hardened chromed and certified per Government drawings. Carrier - M16 style (heavier) carrier functions in AR15 and M4/16 platforms 8620 material heat treated and case hardened. Manufacturing tolerances and surface finishes tightly controlled. NiB-X coated for durability and ease of cleaning. Gas Key - Hardened to USGI specifications and attached using grade 8 hardened fasteners. Permatex No. 3D Aviation Form a gasket Type III Sealing Compound per MIL-S-45180 used on assembly. NiB-X coated. Staked per military specifications. Cam Pin - Manufactured heat treated hardened and certified per government drawings. NiB-X Coated. Package Contents: WMD Guns M16/AR-15 Full Auto Bolt Carrier Group - NiB-X Nickel Boron w/ Ceramic TopCoat What firearm models does the manufacturer say WMD Guns M16/AR-15 Full Auto Bolt Carrier Group (BCG) - NiB-X Nickel Boron w/ Ceramic TopCoat is compatible with? The manufacturer suggests that WMD Guns M16/AR-15 Full Auto Bolt Carrier Group (BCG) - NiB-X Nickel Boron w/ Ceramic TopCoat is compatible with AR-15 M4 M16WMD Guns 1-NIBXBCG0005-Purple: AR-15/M16/M4 Bolt Carrier Group 5.56 NiB-X Purple