MPN: 100-001


  • Strong, easy-to-clean, enhanced heat treated Blackntride+ finish inside and out
  • Revolutionary treatment eliminating the need for excessive oil or grease on tactical components
  • Synthetic fluoropolymer of tetrafluoroethylene to each part to reduce friction and improve wear
  • Precision machined bolt
  • Gas key is properly staked
  • Made in the U.S.A.


  • Caliber: 5.56 NATO / .223 Rem. / 300BLK
  • Weight: 11.5 oz.
  • Finish: Blacknitride+
  • Material:
    • Carrier: 8620 Steel
    • Bolt: 9310 Steel
  • Profile: Full-Auto

**A full-auto (A.K.A. M16) bolt carrier installed in a standard semi-auto AR-15 will not make the gun fire full-auto.


  • AR-15


  • 1x Rubber City Armory Blacknitride+ Bolt Assembly
  • 1x Cam Pin
  • 1x Rubber City Armory Blacknitride+ Carrier
  • 1x Gas Key
  • 1x Firing Pin
  • 1x Firing Pin Retaining Pin


Looking for a high-quality AR bolt carrier group for your AR-15? The Rubber City Armory Bolt Carrier Group delivers everything you need with a lifetime warranty. The bolt is machined from 9310 steel and the carrier is 8620 steel. The major parts are heat treated and coated with a Blacknitride+ finish. Even the RCA stainless steel firing pin is also treated and Blacknitride+ coated.


On the RCA Bolt Carrier Group, the Blacknitride+ treatment process embeds a layer of nitrogen and carbon into the surface of the metals. This delivers a superior product with increases wear resistance, improved corrosion resistance compared to chrome nickel plating and a smoother finish which means you need less lubrication. The RCA Bolt Carrier Group will make you think you have a new gun.

Superior Performance

The Rubber City Armory Bolt Carrier Group comes with the standard serrations on the carrier body in case you need to engage the forward assist to drive a round home. Unless you are shooting really dirty powders or leave the gun bouncing around in the back of your truck riding down a dirt road, you will never need to use the forward assist on this RCA Black Nitride Bolt Carrier Group. The RCA Black Nitride Bolt Carrier Group finish provides such a smooth slide you may forget to take your AR down for cleaning and oiling after a long day at the range or popping varmints.

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