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PaulBre · November 12th, 2013, 22:17

Hi all,

I'm currently running a TM G18C. Stock internals apart from a guarder 150% recoil spring.

The frame suffered the front trigger guard crumbling after it's first skirmish, although while playing, every once in a while the slide stopped on its return stroke a few mm from completion.

I've since installed a Guarder frame and recoil spring (thinking it would solve the return stroke issue, but didn't work), so have started to investigate in depth why the slide sometimes stops cycling.

What I've found is that the full auto sear is very stiff for the slide to depress on its return stroke due to the hammer having a lot of contact area against the sear. Because of this the slide gets to the point where it interacts with the full auto sear, then rides up over it slightly and due to there being so little slop between the slide and frame, the slide stops moving and requires a push to manually return it.

Is the sear supposed to be this stiff against the hammer? I know the KM and Guns Modify hammers are designed slightly differently, do these allow the full auto sear to be depressed easier?

I can take photos if it helps clarify the problem?

Thanks,

Paul.

November 12th, 2013, 22:17	#554
PaulBre Trader rating Join Date: Nov 2013	Hi all, I'm currently running a TM G18C. Stock internals apart from a guarder 150% recoil spring. The frame suffered the front trigger guard crumbling after it's first skirmish, although while playing, every once in a while the slide stopped on its return stroke a few mm from completion. I've since installed a Guarder frame and recoil spring (thinking it would solve the return stroke issue, but didn't work), so have started to investigate in depth why the slide sometimes stops cycling. What I've found is that the full auto sear is very stiff for the slide to depress on its return stroke due to the hammer having a lot of contact area against the sear. Because of this the slide gets to the point where it interacts with the full auto sear, then rides up over it slightly and due to there being so little slop between the slide and frame, the slide stops moving and requires a push to manually return it. Is the sear supposed to be this stiff against the hammer? I know the KM and Guns Modify hammers are designed slightly differently, do these allow the full auto sear to be depressed easier? I can take photos if it helps clarify the problem? Thanks, Paul.