Rainier Arms AR-15 Precision Match Grade BCG Nitride - $169.95

Description

Carrier:

Full Auto Carrier
SAE 8620
Heat Treated
Nitride

Bolt:

5.56/.223
Carpenter 158 Steel
Shot Peened
Heat Treated
Nitride

Extractor:

Machined from bar
Shot Peened
Heat Treated
Maganese Phosphate
Nitride

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
Nitride

Cam Pin:

Precision machined
Heat Treated
Nitride

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