7.5 inch AR Pistol question

Lets_Ride · Aug 13, 2017

Can anyone help. I had my AR pistol at the range today. When I first built it I was using reman brass ammo and the bolt was getting stuck open. the safety, trigger and everything else was jammed as well. Bumping the charging handle on a post freed it up and all as good. I have since run about 500 rounds of Hornady steel ammo through it without a problem. I recently installed a POF trigger in the gun and on the first shot today, using reman brass ammo, the bolt stuck open. This time it was jammed solid but the safety moved freely. I ended up having to remove the buffer tube to get it unstuck. Given that pistols have gassing issues, could a lighter trigger that resets easier cause the bolt to cycle back with more force, thereby jamming the bolt back?

Lets_Ride · Aug 13, 2017

Figured it out. Turns out the part of the POF trigger housing that holds the disconnector snapped off. I guess a 7.5" AR pistol is just too rough for POF

CSavant · Aug 14, 2017

Sounds like your over gassed. Try a heavier buffer or an adjustable gas block.

reapergun · Sep 28, 2017

Are you reloading your own ammo?

Sent from my SAMSUNG-SM-G920A using Tapatalk

Lets_Ride · Sep 29, 2017

No. Factory and factory reman. After talking to POF, they said it happens if you insert the trigger and hammer pins before the selector. Forcing the selector in can crack the housing. They very graciously repaired the trigger at no cost. Gun is running fine but I still have the milspec trigger in it.

7.5 inch AR Pistol question

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