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Matrix 100% CNC 5 Bearing Hammer for WA / G&P / KJW / King Arms & Comp. M4 Airsoft GBB

6 Customer Reviews

by Dan G. on 11/19/2018
"Installed in my G&P WOC M4 challenge kit with the other ambi steel parts available, fit perfectly.
by Erik G. on 07/05/2018
"Used in a G&P WOC challenge kit with Inokatsu Superbolt (weight removed) and SHS trigger, sear and selector. Works great with 0 modification! Excellent piece, a little over priced, but that's what we have available here in Murica. Would not recommend adding this part with out everything else being steel also, which you can get here on Evike if you got the wallet for it!
by Brandon V. on 08/22/2015
"Works perfectly in my AGM GBB M4. Action is A LOT smoother and reduces wear on the bolt and the hammer with the small roller on the hammer. The bearings help a lot too. A must for the AGM GBB M4 or for a replacement/upgrade.

I haven't used this in a game yet since my rifle isn't combat ready yet, but the roller pin seems to be holding up just fine.

***This does not comes with the hammer spring***

Pros:
- Roller on hammer to reduce friction and wear on the hammer and bolt
- pivots on ball-bearings
- nice solid steel

Cons:
None
by Francisco G. on 03/01/2013
"This is well built hammer good for the price. The only thing is when will this be back in stock!!!!
by Jiadong S. on 11/23/2021
"It's good product over all, but bit tight for matrix/s&t m4 gbb metal receiver vision. I have sad down a little bit receiver and side of hammer to put it in. But works perfec
by Hongxu W. on 09/10/2015
"It's a great piece due to the price. Surly CNC machined but the finish doesn't looking great which is not a problem. It will help the bolt travel smoother. Does not really fit in my g&p m4 but it will do just fine after taking out one of the bearing on the side. Good for people who want a solid hammer but can't afford or find a ratech one. Over all 4 out 5