Sons of Liberty Gun Works M16 Bolt Carrier Group, Chrome Finish

$217.55

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Sons of Liberty Gun Works M16 Bolt Carrier Group, Chrome Finish

The Sons of Liberty Gun Works Bolt Carrier Group features an M16 profile and is tested to ensure a lifetime of reliability.

Bolt:

  • Precision machined from Carpenter Technology No. 158 alloy,
  • Heat treated per mil-spec,
  • Shot peened per ASTM B851/SAE AMS2430S,
  • Vibratory tumbled
  • Individual high pressure/proof (HP)
  • Full Auto test fired as an assembly
  • Individual magnetic particle inspection ASTM E1444/E1444M (MP)
  • Markings deep laser engraved (SP=Shot Peened, HP=High Pressure Tested, MP=Magnetic Particle Inspection.)

Extractor:

  • Precision machined from 4340 tool steel alloy per SAE AMS6415T/AMS6484D (vs 4140),
  • Heat treated
  • Shot peen per ASTM B851/SAE AMS2430S.

Extractor Retaining Pin:

  • Precision machined and ground S7 Tool Steel
  • Heat treated per ASTM A681-08
  • Shot peened per mil-spec print

Extractor Spring:

  • Tactical Springs/Sprinco 5 coil, ASTM Grade A401 Chrome Silicon wire stock
  • Heat treated
  • Stress relieved, Molybdenum-Disulfide infused
  • Cryogenic processed (all post winding)
  • Mil-spec black insert/synthetic elastomer extractor buffer (nitrile-butadiene, shore hardness 80+/-5 durometer per MIL-PRF-6855)

Ejector:

  • S7 Tool Steel
  • Heat treated per ASTM A681-08
  • Shot peened per Mil-Spec

Ejector Spring:

  • Heat treated
  • Mil Spec

Gas Rings:

  • Standard stainless steel per Mil-Spec X3

Carrier:

  • Machined from AISI 8620 aircraft qualty alloy per ASTM A108/A322-13
  • Full auto profile
  • Heat treated
  • Carburized/strain relieved, hard chrome bore
  • Precision ground gas key interface
  • Sons of Liberty Battle Flag logo deep laser engraved
  • Hard-Chrome finish

Gas Key:

  •  Machined from 4130 chromoly steel alloy per ASTM A108/A322-13
  • Heat treated, hard chrome internal
  • Hard-Chrome finish
  • Permatex sealed
  • Grade 8 hex screws torqued and staked all per mil-spec

Cam Pin:

  • Precision machined 4340 chromoly steel alloy per SAE AMS6415T/AMS6484D
  • Heat treated/processed per mil-spec
  • Hard-Chrome finish
  • Solid film lubricant applied and cured per mil-spec

Firing Pin:

  • Precision machined 8640 steel alloy
  • Heat treated/processed per mil-spec
  • Hard chrome plate

Firing Pin Retaining Pin:

  • Precision machined from 1038 carbon steel
  • Heat treated/processed per mil-spec
  • Hard-Chrome finish

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2 reviews for Sons of Liberty Gun Works M16 Bolt Carrier Group, Chrome Finish

  1. Al (verified owner)

    Sons BCG… not much more needs to be said. Great finish, great staking. Only complaint is they’re not using OCKS for their chrome carriers. The picture shows a chrome extractor, but the one I got has a phosphate extractor which is a huge plus.

  2. Howard (verified owner)

    I am working on a new AR build, and I want a high quality bolt carrier group. After watching a number of videos and reviews, I settled on a Sons of Liberty Gun Works BCG with a chrome finish. SOLGW was out of stock on chrome finish, but I had heard that Rooftop Defense was an excellent shop that had them in stock. I was extremely pleased with the quick shipping from Rooftop Defense, and Sol even included a pack of ramen noodles with the order, LOL! The SOLGW bolt carrier group is a beauty, and I look forward to putting it in action at the range soon.

    5 stars to Rooftop Defense and to SOLGW!

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