RAINIER ARMS AR-15 PRECISION MATCH GRADE BCG - NITRIDE
RAINIER ARMS AR-15 PRECISION MATCH GRADE BCG - NITRIDE

RAINIER ARMS AR-15 PRECISION MATCH GRADE BCG - NITRIDE

Part Number:RA-BCG
Your Price: $169.95
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The Rainier Arms Precision Match Grade Phosphate BCG - 5.56 Nitride 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/HP tested & Marked to give you ultimate confidence in your weapon system.


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

Limited Lifetime Warranty

Rainier Arms BCG offers them with a limited lifetime warranty. So if at anytime your Rainier Arms BCG breaks on your during normal use(Intentional abuse & Gas Key wear not included) they will replace it.

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