Armaspec TCB-31 Extended Mag Release (AR-15/AR-10)

Armaspec TCB-31 Extended Mag Release (AR-15/AR-10)




The TCB-31 is an extended mag release designed to improve the functionality and ergonomics of the factory button. The TCB increases the size of your factory button by 263% making it easier and faster to perform magazine changes. The size and ergonomic design enables button engagement without changing your grip position.



  • Faster magazine change
  • 263% larger than Mil-Spec mag release button
  • Compatible with Mil-Spec AR-15 lower receivers
  • Ergonomic design
  • Made in the U.S.A.
  • Lifetime warranty


  • Material: Aluminum
  • Height: 0.625″
  • Width: 0.625″
  • Wight: 0.18 oz.


  • AR-15 and AR-10


  • 1x Tactical Combat Extended Mag Release Cap
  • 1x Tactical Combat Extended Mag Release Base
  • 2x Socket Head Screws
  • 1x Hex Key (3/32)

Additional information

Weight 0.10 lbs
Dimensions 7 × 2 × 9 in

Red, OD Green, Purple, FDE, Blue, Silver


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