RTB Complete Lightweight Bolt Carrier Group - Mod 2

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Product Code: SBN16-LW-MOD2
Stock Status Stock Status: Out of Stock
List Price: $179.99
MSRP: $179.99
Sale Price: Sale Price: $169.95
Savings: $10.04
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Out of stock

RTB Complete Low Mass BCG - Mod 2

Featuring our MOD 2 Reduced Mass 5.56/.223 BCG, weighing in at approximately 8.2 Ounces, or 232 Grams for you lightweight build fanatics! Using our low mass Bolt Carrier Group creates less reciprocating mass moving back and forth inside the action, which reduces recoil significantly. Our lightweight carrier also allows proper cycling with less gas. When used in conjunction with an adjustable gas block & a reduced power buffer spring, you can tune the gas way down, which will reduce muzzle rise and carbon build up.

Click here for the reduced power buffer spring

Click here for the adjustable gas blocks


  • Caliber: .223 / 5.56 / 300 Blackout
  • Enhanced 9310 Steel (Bolt)
  • 8620 Tool Steel (Carrier)
  • Mil-Spec Extractor Spring, black extractor insert, Viton O-Ring
  • Tool Steel Extractor
  • Shrouded Firing Pin
  • Mil-Spec Gas Key (4130 Steel) attached with Grade 8 hardware and Properly staked
  • Bolt is shot Peened and MPI
  • Weight: 8.2 Ounces / 232 Grams!
  • Black Nitride Finish
  • Lifetime Warranty (you break it, we replace it)
  • 100% Made in USA
Maximum Purchase:
5 units