Enhanced Combat Button - ECB Slant ™

Enhanced Combat Button - ECB Slant ™

TCB-31™ Extended Mag Release

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. 

Available in Black, Red, FDE, ODG, and Blue

Availability: In stock
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  • 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)
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