SKU: STABRGBCG556

5.56 - .223 Bolt Carrier Group, Nitride QPQ MPI

$105.59

In stock

Description

Since 2013, Burgu has also sold over 1 million bolt carrier groups under Turkish government contract for MPT55, MPT76, MP5, HK33, G3, and MG3

Magnetic particle inspected to ASTM E1444 aircraft quality inspection standards for molecular soundness and longer life of all the below-mentioned metal parts

Carrier: 8620 heat treated (case hardened to SAE-AMS-6875). QPQ / nitride / melonite coated

Bolt: 14NiCr14 or 9310 Heat treated (case hardened to SAE-AMS-6875). QPQ / nitride / melonite coated

Extractors: Aircraft quality alloy steel shot peened. Heat treated to military drawing specification SAE- AMS-6875. Phosphated to 5.3.1.3 of MIL-STD-171.

Gas key: Gas key, aircraft quality steel heat treated to SAE-AMS-6875 QPQ HT PROCESS .

Cam pins: Precision machined. Heat treated to SAE-AMS-6875. Phosphated to 5.3.1.3 of MIL-STD-171

Firing Pin: Machined and precision ground for accuracy. Heat treated to military drawing specification per SAE-AMS-6875. Chrome lined per 1.2.2 of mil-std-171

Firing pin retaining pin: Heat treated stainless steel pin contouring the carrier body.

Ejector: Precision machined. Heat Treated to SAE-AMS-6875. Phosphated to 5.3.1.3 of MIL-STD-171. Gas rings: 3 pc. stainless steel per Mil-Spec.

Additional information

Weight 3.00 lbs
Dimensions 1.00 × 1.00 × 1.00 in
MPN

Reviews

There are no reviews yet.

Be the first to review “5.56 – .223 Bolt Carrier Group, Nitride QPQ MPI”

Your email address will not be published. Required fields are marked *

Customer Reviews

5/5

“A review from a customer who benefited from your product. Reviews can be a highly effective way of establishing credibility and increasing your company's reputation.”

Customer Name
5/5

“A review from a customer who benefited from your product. Reviews can be a highly effective way of establishing credibility and increasing your company's reputation.”