AIM Surplus Light Weight NiB Bolt Carrier Group

[GOST]

NEW Light Weight AIM AR 5.56/.223/.300 BLACKOUT complete Nickel Boron Bolt Carrier Groups. Only 8.5 ounces! Almost 28% in weight savings over our standard NIB BCG! We are having these bolts manufactured to our exacting standards. Features 9310 Bolt Material; 8620 carrier and gas key; Properly staked Investment cast gas key hardened to USGI specifications fastened with Hardened Grade 8 Fasteners; Shot peened MPI (Magnetic Particle Inspected) Bolt. Extractor insert installed. More information below.

Assembly

The requirements for assembly of our Bolt Carrier Groups are much higher than most. Before assembling the gas key to the carrier, permatex NO.3D aviation is applied to form-a-gasket around the gas hole (per MIL-SPEC). Then Grade-8 hardware is used to attach the gas key, followed by properly staking per spec. When installing the extractor to the bolt, a crane-o-ring is inserted with the spring to insure proper ejection. Then high temperature grease is applied to the gas rings before inserting the bolt into the carrier, which allows for much smoother operation. These BCGs are inspected to the highest of standards, to insure a high quality product that is 100% reliable for our customer… PROUDLY MADE IN THE USA!

Carrier

AR15 (SEMI-AUTO)
Machined from 8620 tool steel
Heat treated to military specifications

Bolt

Machined from 9310 tool steel
Heat treated to military specifications
Shot Peened
Ground to meet military required tolerances
MPI (Mag Particle Inspected)

Gas Key

Machined from 4140
Heat treated to military specifications

Extractor

Machined from 4140
Heat treated to military specifications
Shot peened

Firing Pin

Machined from 8640 tool steel
Heat treated to military specifications
Ground to meet military required tolerances
Coated with .0002”-.0003” of hard chrome per MIL-STD-171 1.2.2.2

Cam Pin

Machined from 4340
Quench and temper heat treat
Ground to meet military required tolerances

$119.95 with free shipping in 48 States

http://www.aimsurplus.com/product.as...098cf-18133389