SOLGW M16 5.56 Bolt Carrier Group with OCKS – Phosphate

Description

SONS OF LIBERTY GUN WORKS BOLT CARRIER GROUP with OCKS Carrier Key Screws

The BCG is one of the most important parts of your rifle. SOLGW Bolt carrier groups are made with quality materials and individually inspected and test fired before leaving their facility to ensure you’re getting a quality product to keep your rifle running.

WHY THE SOLGW BCG?

Sons of Liberty understands the importance of the bolt carrier in an AR15 Platform rifle, so they tailored their BCGs around durability, reliability and consistency, while avoiding adding gimmicky “features” or coatings. All SOLGW Bolt Carrier Groups are SP/HPT/MPI. Each individual BCG is test-fired by SOLGW before they are sent out the door. 

DETAILS:

Bolt:

• Precision machined from Carpenter Technology No. 158 chrome-nickel alloy

• OCKS Carrier Key Screws

• Heat treated per mil-spec,

• Shot peened per ASTM B851/SAE AMS2430S,

• Vibratory tumbled

• Individual high pressure/proof (HP) test

• Full Auto test fired at 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

• Manganese phosphate

Extractor Spring:

• Tactical Springs/Sprinco 5 coil, ASTM Grade A401 Chrome Silicon wire stock

• Heat treated

• Stress relieved, Molybdenum-Disulfide infused

• Cryogenic processed (Hidden 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

• Manganese phosphate

• Ejector Spring:

• Heat treated

• Mil Spec

Gas Rings:

• Standard stainless steel per Mil-Spec X3

Carrier:

• Machined from AISI 8620 aircraft quality 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

• Manganese phosphate

Gas Key:

• Machined from 4130 Chromoly steel alloy per ASTM A108/A322-13

• Heat-treated; hard chrome internal

• Manganese phosphate

• Permatex sealed

• Grade 8 hex screws torqued and staked Hidden per mil-spec

Cam Pin:

• Precision machined 4340 Chromoly steel alloy per SAE AMS6415T/AMS6484D

• Heat-treated/processed per mil-spec

• Manganese phosphate

• 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

• Manganese phosphate