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Questions & Answers
Customer Reviews
Helpful Positive Review
Pretty Good Product by Mike D, Verified Owner, November 19, 2023
I installed this on a Larue lower. It make ejecting the mag much easier than the stock button. It does stick out a bit far from the receiver and could be bumped on accident cause an unintentional ejection. I wish it was half as thick and made of s...
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1/1 found this helpful
Helpful Positive Review
Large mag release button. by Hawk, Verified Owner, March 15, 2021
This is a great mag release. It's easy to use if you have coupled mags or a Beta C drum mag. Lefties be careful, though, you'll drop your mag if you tend to rest your rifle on your mag pouches. The material is aluminum, even though the pics make it l...
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1/1 found this helpful
Helpful Negative Review
Way Too Big by EVO-99, Verified Owner, July 19, 2023
This thing is just way to big, it sticks out way too far from the side of the rifle & it fits a very small amount of lowers. The quality is good but fitment and practicality just isn’t there. I’d recommend the Magpul over this thing any day.
1/1 found this helpful
Most Recent Reviews
Check Receiver Spacing! by HAbel, March 27, 2026
I’ve been trying to write more reviews to help out the next guy, and I challenge others to do as well. But I think some review etiquette is necessary. 1. delivery problems aren’t the products fault. 2. It’s helpful to include some context or backgro...
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Most Recent Reviews
my favorite mag button by Jayel Dubya, Verified Owner, July 26, 2025
Pretty much perfect in size for me. Feels good resting my booger hook on it when not in the trigger guard. Bring your own loctite.
Most Recent Reviews
We’ll designed by Jeff, October 1, 2022
A quality, well designed extended magazine release. I had to replace another custom magazine release on my lower because it was hitting the anti-walk pins. The result was that I couldn’t get a mag to release most of the time. The Armaspec clears the ...
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made-in-usa-flag Made in USA

Help support American manufacturing! Marked models of this product have gone through rigorous review and been certified by the manufacturer as Made in the USA.

Product Info for Armaspec TCB-31 Extended Magazine 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.image

WARNING: California`s Proposition 65

Specifications for Armaspec TCB-31 Extended Magazine Release:

Manufacturer: Armaspec
Gun Make: AR Platform
Gun Model: AR-10, AR-15
Fabric/Material: Aluminum
Weight: 0.18 oz
Condition: New
Country of Origin: USA

Features of Armaspec TCB-31 Extended Magazine Release

  • Faster magazine change
  • 263% larger than Mil-Spec mag release button
  • Compatible with Mil-Spec AR-15 lower receivers
  • Ergonomic design
  • made in specialized factories
  • Lifetime warranty

Package Contents:

  • Armaspec TCB-31 Extended Magazine Release

Armaspec TCB-31 Extended Magazine Release Orderable Models

List of Orderable Models

  • Armaspec TCB-31 Extended Magazine Release, Black, ARM103-BLK , MPN: ARM103-BLK , UPC: 810048490394 , Code: AMS-MRC-ARM103-ARM103-BLK
  • Armaspec TCB-31 Extended Magazine Release, OD Green, ARM103-ODG , MPN: ARM103-ODG , UPC: 810048490417 , Code: AMS-MRC-ARM103-ARM103-ODG
  • Armaspec TCB-31 Extended Magazine Release, Flat Dark Earth, ARM103-FDE , MPN: ARM103-FDE , UPC: 810048490400 , Code: AMS-MRC-ARM103-ARM103-FDE
  • Armaspec TCB-31 Extended Magazine Release, Blue, ARM103-BLU , MPN: ARM103-BLU , UPC: 810048490431 , Code: AMS-MRC-ARM103-ARM103-BLU
  • Armaspec TCB-31 Extended Magazine Release, Red, ARM103-RED , MPN: ARM103-RED , UPC: 810048490424 , Code: AMS-MRC-ARM103-ARM103-RED
  • Armaspec TCB-31 Extended Magazine Release, Bronze, ARM103-BRZ , MPN: ARM103-BRZ , UPC: 810048493067 , Code: AMS-MRC-ARM103-ARM103-BRZ

Armaspec TCB-31 Extended Magazine Release Unavailable & Discontinued Models

List of Unorderable Models

  • USED Armaspec TCB-31 Extended Magazine Release, Black, ARM103-BLK, EDEMO1, Used, Condition Like New , MPN: ARM103-BLK-EDEMO1 , Code: AMS-MRC-ARM103-ARM103-BLK-EDEMO1
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Last updated 2026-11-04 UTC.