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Upgrade your AR-15 with the Brownells M16 5.56 Bolt Carrier Group. 🔧 Reliable, durable, and perfect for 5.56 NATO cartridges!

BROWNELLS M16 5.56 BOLT CARRIER GROUP NITRIDE MP - BROWNELLS M16 BOLT CARRIER GROUP 5.56X45MM NITRIDE MP

050806112278 078102001

Restrictions

  • Is a 'Call to order' product.

Top takeaways

  1. The Brownells M16 5.56 Complete Bolt Carrier Group is compatible with AR-15 or M16 rifles and functions with 5.56x45mm, 300 AAC Blackout, or .223 Remington cartridges.
  2. Constructed with a 9310 steel bolt and 8620 hardened steel carrier, it features a black-nitride finish and includes a magnetic-particle inspected material for reliability.
  3. This bolt carrier group comes with all necessary components, including a bolt, carrier, gas key, firing pin, cam pin, and firing pin retaining pin, with the extractor having a spring and rubber insert.

Attributes

  • Cartridge: 5.56 mm NATO
  • Finish: Black Nitride
  • Make: AR-15
  • Delivery weight: 0.329kg
  • Shipping height: 25mm
  • Shipping width: 38mm
  • Shipping length: 184mm
  • UPC: 050806112278

Item details

Made in USA
US export classification: I(g)
  • Specifications:
  • Cartridge: 5.56 mm NATO
  • Finish: Black Nitride
  • Make: AR-15
129.9 129.9 1 GBP
129.9 GBP £129.90

Prices inclusive of duty & VAT.

Product no.: 078102001

050806112278 The Brownells M16 5.56 Complete Bolt Carrier Group is designed to work easily and reliably in any AR-15 or M16 rifle chambered in 5.56x45mm, 300 AAC Blackout or .223 Remington. The Brownells M16 5.56 Complete Bolt Carrier Group is constructed with a bolt made from 9310 steel, which is finished with a heat treatment and shot peening. The carrier is fabricated from 8620 hardened steel. Each element of the bolt-carrier group is finished in a black-nitride coating. Magnetic-particle inspected material Extractor includes spring and rubber insert Includes torqued and staked gas key Functions with any cartridge based on the 5.56 NATO cartridge case The Brownells M16 5.56 Complete Bolt Carrier Group comes with a bolt, bolt carrier, gas key, firing pin, cam pin and a firing pin retaining pin.
Not available - Is a 'Call to order' product.
Is a 'Call to order' product.
  • Specifications:
  • Cartridge: 5.56 mm NATO
  • Finish: Black Nitride
  • Make: AR-15

Description:

Reliability for the Discerning Operator
The Brownells Bolt Carrier Group is made by a well-established firearms industry manufacturer, made to our specifications.  All components of the BCG are made in-house, under one roof, not outsourced to the lowest bidder.  Even the firing pin and gas key, commonly outsourced components, are machined by our manufacturer.  These Bolt Carrier Groups are rigorously inspected at the factory, for hardness requirements, fitment, cam path geometry, magnetic particle inspection of the bolt and more.  Materials for these Bolt Carrier Groups are certified in batches and the dimensions are true to the most current military specifications.  Proudly Made in the USA. Bolt is made from 9310 hardened steel, shot peened and magnetic particle inspected Carrier is machined from 8620 hardened steel Extractor is machined  from 4340 steel and includes mil-spec extractor spring and black o-ring Gas Key is machined from 4130 steel and attached with Grade 8 screws, that are properly staked into a milled “valley” to ensure proper positioning Cam Pin is machined from hardened 4340 steel Firing Pin is made from 8740 steel, center-less ground and hard chrome coated Magnetic-particle inspected Bolt Extractor includes spring and rubber insert Includes torqued and staked gas key Functions with any cartridge based on the 5.56 NATO cartridge case The Brownells M16 5.56 Complete Bolt Carrier Group is designed to work easily and reliably in any AR-15 or M16 rifle chambered in 5.56x45mm, 300 AAC Blackout or .223 Remington.  The Brownells M16 5.56 Complete Bolt Carrier Group comes with a bolt, bolt carrier, gas key, firing pin, cam pin and a firing pin retaining pin.  

The Brownells M16 5.56 Complete Bolt Carrier Group is designed to work easily and reliably in any AR-15 or M16 rifle chambered in 5.56x45mm, 300 AAC Blackout or .223 Remington. The Brownells M16 5.56 Complete Bolt Carrier Group is constructed with a bolt made from 9310 steel, which is finished with a heat treatment and shot peening. The carrier is fabricated from 8620 hardened steel. Each element of the bolt-carrier group is finished in a black-nitride coating. Magnetic-particle inspected material Extractor includes spring and rubber insert Includes torqued and staked gas key Functions with any cartridge based on the 5.56 NATO cartridge case The Brownells M16 5.56 Complete Bolt Carrier Group comes with a bolt, bolt carrier, gas key, firing pin, cam pin and a firing pin retaining pin.

Restrictions

  • Is a 'Call to order' product.

Top takeaways

  1. The Brownells M16 5.56 Complete Bolt Carrier Group is compatible with AR-15 or M16 rifles and functions with 5.56x45mm, 300 AAC Blackout, or .223 Remington cartridges.
  2. Constructed with a 9310 steel bolt and 8620 hardened steel carrier, it features a black-nitride finish and includes a magnetic-particle inspected material for reliability.
  3. This bolt carrier group comes with all necessary components, including a bolt, carrier, gas key, firing pin, cam pin, and firing pin retaining pin, with the extractor having a spring and rubber insert.

Attributes

  • Cartridge: 5.56 mm NATO
  • Finish: Black Nitride
  • Make: AR-15
  • Delivery weight: 0.329kg
  • Shipping height: 25mm
  • Shipping width: 38mm
  • Shipping length: 184mm
  • UPC: 050806112278

Item details

Made in USA
US export classification: I(g)

Customers reviews

Customer ratings (13)

4.9 / 5
Definitely recommended

Brownells USA Excellent M16 Bolt Carrier Group 24/09/2018

The Brownells M16 Bolt Carrier Group is an excellent buy! I made some random measurments and each one met Mil Spec dimensions. The Timing was also checked with Upper installed and the Bolt Assembly locked at correct time. This is highly recommended!

Definitely recommended

Brownells USA Best BCG yet! 01/09/2018

I have handled and used many BCGs over the years. Even an expensive BCG carrier had issues with not being finished smooth where the carrier interfaces with the face of the buffer. This resulted in dramatic gouging of the buffer face (yes it still worked but it should not have happened).



Enter the Brownells BCG. I have only fired a few hundred rounds, but the machining of all the parts is 100%. Even the locking lugs on the bolt have a slight angled cut on the back of each locking lug to aid in even smoother lockup.



I used to be of the mindset that a BCG that wasn't at least 130 or more......was garbage.



Any future BCG will be a Brownells (Toolcraft is also an equivalent value and quality, but Brownells wins still). I do Like to run a JP bolt as well, to get extra fancy :)

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