Rainier ARMS Precision Match Grade BCG - Nickel Boron

Rainier ARMS Precision Match Grade  BCG - Nickel Boron
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  • Item #: RA_BCG_NiB_MG
  • Manufacturer: Rainier ARMS
  • Sorry, Unable to Ship to APO :
Price $219.95
Availability Out-of-Stock

Description:

The Rainier Arms Precision Match Grade Nickel Boron BCG - 5.56 is machined and finished to a higher standard to meet and exceed all Mil Spec. It is machined using the most precise equipment in the industry. The bolts are MPI tested & Marked to give you ultimate confidence in your weapon system.

Carrier:

  • Full Auto Carrier
  • SAE 8620
  • Heat Treated
  • Nickel Boron Plated

 

Bolt:

  • 5.56/.223
  • Carpenter A-158
  • Shot Peened
  • Heat Treated
  • Nickel Boron Plated

 

Extractor:

  • Machined from bar
  • Shot Peened
  • Heat Treated
  • Nickel Boron Plated

 

Extractor Spring:

  • Chrome Silicone for Longer Life
  • Black Insert as per current Mil-Spec
  • "O" Ring is high temp resistant dark brown

 

Extractor Retaining Pin:

  • Precision Machined
  • Precision ground to diameter
  • Precision ground to length
  • Heat Treated

 

Firing Pin:

  • Machined and then precision ground for accuracy
  • Heat Treated

 

Gas Key Bolt:

  • Precision manufactured in house with extra deep knurling
  • Grade 8
  • 1200 degree locking patch is factory applied to threads to help insure long lasting tightness

 

Gas key:

  • Hard Chrome lined gas tube as per Mil-Spec
  • Bolts installed to proper torque
  • Staking on both sides of both bolts

 

Cam Pin:

  • Precision machined
  • Heat Treated
  • Nickel Boron Plated

 

Firing Pin Retaining Pin:

  • Precision bent
  • Precision cut to length
  • Heat Treated

 

Gas Rings:

  • Stainless Steel per Mil-Spec

 

Ejector:

  • Precision machined
  • Heat Treated

 

Ejector Spring:

  • Chrome Silicone
  • Precision ground ends

 

Ejector Retaining Pin:

  • Precision cut to length
  • Hard Chrome Plated

 

 

Limited Lifetime Warranty
We are so confident in our Rainier Arms NiB BCG we offer them with a limited lifetime warranty. So if at anytime your Rainier Arms NiB BCG breaks on your during normal use(Intentional abuse & Gas Key wear not included) we will replace it.

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