I asked this question before looks like the thread was lost in the website update.
My gun feeds FLAWLESSLY, and shoots pretty darn well BUT every so often (100 rounds or so) the firing pin fails to fall after pulling the trigger.
Doesnt appear to be a headspace issue..... gun "locks" up tight (and the next 100 rounds fire) I have the trigger adjsustment screw ALL the way backed off.... I polished the moving pieces......
With the gun partaily disasembled...... locked and cocked......pull the trigger slowly ..... ya can see the rear of the bolt drop downward....... before it begins to move the sear... is this normal? If ya JERK the trigger it seems to fire more reliably...... but I dont wanna jerk the trigger.... and it is happening so infrequently that I am having trouble diagnosing the trouble.
Firing pin is definately "cocked" action is definately "locked" I am leaning toward a "break in" issue or a trigger travcel issue..........
MY FIRST 1919a4 I am baffled. I wanna start grinding but i am hesitant.
The FRONT BOTTOM of the kmp trigger should it come into contact with barrel extension AT ALL when the trigger is fully pulled?? My barrel extension is ground "45* or whatever at that area as it should be..... but it still rubs a bit. Seems as though if I could pull the trigger FARTHER it might fire....... but trigger pull is absurd allready..
Any ideas?
Oh its a semi auto built on a kmp trig / sear and and a ORF plate
My gun feeds FLAWLESSLY, and shoots pretty darn well BUT every so often (100 rounds or so) the firing pin fails to fall after pulling the trigger.
Doesnt appear to be a headspace issue..... gun "locks" up tight (and the next 100 rounds fire) I have the trigger adjsustment screw ALL the way backed off.... I polished the moving pieces......
With the gun partaily disasembled...... locked and cocked......pull the trigger slowly ..... ya can see the rear of the bolt drop downward....... before it begins to move the sear... is this normal? If ya JERK the trigger it seems to fire more reliably...... but I dont wanna jerk the trigger.... and it is happening so infrequently that I am having trouble diagnosing the trouble.
Firing pin is definately "cocked" action is definately "locked" I am leaning toward a "break in" issue or a trigger travcel issue..........
MY FIRST 1919a4 I am baffled. I wanna start grinding but i am hesitant.
The FRONT BOTTOM of the kmp trigger should it come into contact with barrel extension AT ALL when the trigger is fully pulled?? My barrel extension is ground "45* or whatever at that area as it should be..... but it still rubs a bit. Seems as though if I could pull the trigger FARTHER it might fire....... but trigger pull is absurd allready..
Any ideas?
Oh its a semi auto built on a kmp trig / sear and and a ORF plate