Rubber City Armory 7.62x39 Low Mass Bolt Carrier Group - Nitride

Manufactured by Rubber City Armory
SKU: 211-001
MPN: 211-001
Manufactured by Rubber City Armory
2 Reviews

In Stock

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The Rubber City 7.62x39 Low Mass Complete BCG is ideal for shooters who desire less muzzle movement between shots. The bolt carrier group is constructed from high-quality 8620 steel and finished with black nitride for optimal durability and strength. The carrier weighs 6.9 oz. making it much lighter than the standard M16 carrier resulting in optimal performance and making it ideal for competition.

  • Manufactured by Rubber City Armory
  • 7.62x39 bolt
  • 8620 bolt carrier with nitride coating
  • Pre-hardened gas key with nitride finish
  • 9310 steel enhanced radius machined M16 bolt
  • Tool steel extractor
  • Cam pin
  • Lifetime Warranty

The performance of your weapon is further enhanced with the pre-hardened 4140 steel gas key with reduced sharp edges due to its radius corners. These features enhance performance of low mass GI systems of the bolt carrier group. The nitride 17-4 firing pin and 9310 nitride bolt offers years of service life and unrivaled durability making this a competition ready complete bolt carrier group. The Rubber City Low Mass Complete BCG with steel gas key is ideal for the competitor or shooter wanting better performance from their firearm.
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Bolt FinishSalt Bath Nitride
Bolt Material9310 Steel
BrandRubber City Armory
Caliber Gauge7.62X39mm
Carrier FinishSalt Bath Nitride
Carrier Material8620 Carpenter Steel
Carrier StyleLow Mass Bolt Carrier
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to

Ratings & Reviews

2 reviews

  • 4 stars
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  • 1 star
  • 0 reviews

Needs enhanced firing pin for 7.62x39 which it doesn't come with

by -

I wrote a review on this the other day but apparently it didn't get posted. So I'll try again. This bcg is very overpriced for the simple fact it doesn't use the right length firing pin that 7.62x39 requires to function reliably . I swapped the firing pin to an enhanced firing pin and it works flawlessly now but just a shame it's not ready to run out the box even though it says it's supposed to be.

1000 rounds down and plenty more to go

by -

Functions well it may have lite striked a few primers or it was just the supper cheap steel case ammo (the world may never know). Brass case ran perfectly the whole time. It is extremally light leading to a little less recoil. All around I'm happy with it but it is a little pricy.