AIM .308/7.62x51 BDG NiB Bolt Carrier Group

SKU: XAIMBCG308NIBBDG   

$179.95    Quantity:    Add To Wish List

AIM .308/7.62x51 Caliber BDG Nickel Boron Bolt Carrier Groups. A great BCG at an even better price! We are having these built to our exacting Standards. The Bolt is shot peened and manufactured out of 9310 Tool Steel with a 4140 Machined Extractor. The Carrier is the more common DPMS pattern with a Nickel Boron finish for easier cleaning and provides a slicker surface. The Gas Key is Hardened to USGI Specifications and fastened to the carrier using Grade 8 Hardware, and then properly staked. More information below.

FREE SHIPPING ON THIS ITEM IN THE 48 STATES!

3 to 9 $179.95
10 to 34 $179.95
35 or more $179.95

Assembly
The assembly requirements for 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 i used to attach the gas key, followed by properly staking per spec.  When installing the extractor to the bolt, both the extractor buffer and the crane-o-ring are inserted with the spring.  Both are present to insure proper ejection 100% of the time.  Then high temperature grease is app 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 customers…PROUDLY MADE IN THE USA!

Carrier
  • 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
  • Heat treated to military specifications
  • Ground to meet military required tolerances
Other Information
  • Due to a wide range of 308 AR tolerances from other manufacturers, forward assist and bolt catch compatibility may vary.

 

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