Rubber City Armory 6.5 Grendel Type II AR-15 Bolt Carrier Group - Nitride

Manufactured by Rubber City Armory
SKU: 6.5-001
MPN: 6.5-001
Manufactured by Rubber City Armory
1 Review

In Stock

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The Rubber City 6.5mm Grendel Standard Mass M16 Profile Complete 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 8.9 oz. making it much lighter than the standard M16 carrier resulting in optimal performance and making it ideal for competition. 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. This feature enhances the performance of standard mass GI system and improves the reliability of the bolt carrier group. The RCA firing pin and enhanced radius machined 6.5mm Type II Grendel bolt made of 9310 steel offers years of service life and unrivaled durability making this a competition ready complete bolt carrier group. The Rubber City 6.5mm Grendel Standard Mass M16 Profile Complete is ideal for shooter wanting better performance from their firearm.

  • The Rubber City Armory
  • 8620 high-grade steel bolt carrier with H&M's Black Nitride+ treatment
  • Pre-hardened 4140 steel gas key with nitride finish
  • 9310 steel enhanced radius machined 6.5 Grendel Type II bolt
  • RCA firing pin
  • Cam pin
  • Retaining pin
  • Lifetime Warranty
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Bolt FinishSalt Bath Nitride
Bolt Material9310 Steel
BrandRubber City Armory
Caliber Gauge6.5 Grendel Type 2
Carrier FinishSalt Bath Nitride
Carrier Material8620 Carpenter Steel
Carrier StyleM16 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

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Excellent BCG

by -

Had this BCG for a few weeks now. I went thru it gauging everything before I ran it. Only flaw I found was the pocket that holds the extractor spring was a bit wide. That's a non issue really. Over 30 different gauge points all passed. BCG has ran flawless in my 24in comp build. Well done and would definitely recommend RCA to look at for your next builds or replacements.