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SLR BCG 5.56 - Black Nitride

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SKU:
BCG-SLR-556
Maximum Purchase:
1 unit
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SKU:BCG-SLR-556

Info

SKU:
BCG-SLR-556
Maximum Purchase:
1 unit

Description

 

 

 

SLR Black Nitride BCG 5.56

Carrier Assembly: The enhanced bolt carrier is designed to reduce carrier tilt/cant during recoil and increasing reliability by strategically relocating key bearing surfaces.

Material: Case-hardened 8620 steel (complete care is taken during the heat treat process, so as to not harm the metal)

Finish: Black Nitride. 

Gas Key: 4130 Steel, attached with Grade 8 hardware, torqued and properly staked into a milled “valley” around a fully encased ejection port area, for added strength and rigidity.

Cam Pin: Hardened 4340 cam pin.

Firing Pin: Mil Spec firing pin made of 8740 steel, center-less ground and Hard Chrome coated.

Bolt Assembly: The Bolt is “true” Mil Spec dimension and external surfaces are CNC ground after heat treat for a precision fit. These bolts are held to the highest possible tolerance possible. The “trumpet” area behind the gas rings, where carbon normally collects, is precision CNC Ground after heat treatment, to ensure as smooth of an area as possible, easing clean up, and longevity.

Material: 9310 Case Hardened Steel

Finish: All Bolt components Shot Peened & Nitride Finish

Extractor: 4340 Steel, Nitride Finish

Magnetic Particle Inspected (MPI) and High Pressure Tested (HPT)

Mil Spec Extractor Spring & O-Ring

 

Lugs are machined with the proper radius as per true mil-spec tolerances. Independent HP white proof testing exceeded over 90,000 PSI without failure.

Outer diameter machined to all critical surfaces within +/- .0005 inches.

Rounded cam pin rides in a fully chamfered cam path.

Gas key with rounded leading edges insures positive functioning in all makes and grades of uppers and buffer tube combinations.

Properly staked and torqued grade 8 hex screws as per the true mil-spec.

Carrier body OD and ID are hard turned after heat treat to +/- .0005 inches

 

1 Review

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  • Phil Oliveira - Jul 11th 2021

    5
    Awesome BCG

    This BCG is nice. Super nice. Fast shipping and packaged well. This thing just feels amazing right out of the box. It reeks of premium, what else can I say. It's built like a tank, that's for sure. Premium specs, none of the Mil-Spec shenanigans. This is way better, no question about it.

1 Review

  • Phil Oliveira - Jul 11th 2021

    5
    Awesome BCG

    This BCG is nice. Super nice. Fast shipping and packaged well. This thing just feels amazing right out of the box. It reeks of premium, what else can I say. It's built like a tank, that's for sure. Premium specs, none of the Mil-Spec shenanigans. This is way better, no question about it.

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