Bolt Carrier Group - 5.56/.223/300 BLK - Nickel Boron - Left Handed

Bolt Carrier Group - 5.56/.223/300 BLK - Nickel Boron - Left Handed



**Maximum purchase -  5 per customer per day**

This bolt carrier assembly is designed to work with any AR-15 rifle, upper half, or barrel designed for left hand ejection in the 5.56/.223 caliber. The nickel boron coating has increased lubricity and a low friction co-efficient; therefore, the life expectancy of a firearm will be greatly increased due to reduced friction wear.


Coating: Extremely Durable Nickel Boron Coating

Bolt carrier material: 8620 steel

Bolt: 5.56/.223 Left-Handed Bolt assembly

Included parts: Bolt carrier, bolt assembly, cam pin, firing pin, and firing pin retaining pin

Design: M16 carrier with a shrouded firing pin

Staking: Proper mil-spec staking of the gas key

SKU: STAG310755


Q: Will this bolt carrier work with other manufacturer's rifles and upper halves?

A: Yes, this bolt carrier assembly will work with other manufacturer’s left-handed 5.56 rifles and upper halves.

Q: Can I use this bolt carrier with the Stag Arms piston system?

A: No, this bolt carrier assembly will not work with piston systems.


Reviews (5)

Tom Collins 15th May 2020

Nickel boron BCG

This BCG cleans up easily when using in a suppressed application. STAG quality at a reasonable price.

Gerald Klock 7th Oct 2017

5.56 nickel boron BCG

Bought this BCG a few months back and waited to write a review until I had a chance to put a few rounds down range. I have put around 1500 rounds through the gun and this BCG has functioned flawlessly. I do not run my weapon systems dry so with that said if you properly lube your gun, failures are drastically reduced or are non existent with most quality built BCG's. Where this carrier shines is in its ease of maintenance, with a little clp on a rag or a solvent wipe the carrier comes clean with no real effort involved. I use slip 2000 and the BCG runs like it's on ball bearings.i experiencedo no failures to feed, no failures to fire, and no failures to eject. I upgraded my stag left handed Carbine With this BCG and believe that this was one of the best upgrades I could have done. Definitely worth getting one. My only complaint would be the price, just wish it could be a little more in competition with their right handed BCG's. With that said Stag is one of the only dedicated left hand manufactures out there building quality parts for us lefties, so I look at the price as an investment in my shooting experience.