AR-15 trigger won't reset (UPDATED)

[DaveM55]

Sure. Every single part came from Del-Ton.

I bought the lower at a local gun shop, but it's a Del-Ton lower. The LPK came directly from Del-Ton though, and I just used the standard trigger that came with it.

I assume they manufacture it themselves, but I have no proof of that one way or another.

OK, you said earlier the trigger is all one solid piece. Was the trigger group assembled or did you assemble that?

I would verify what Lycan suggested, Make sure the disconnector spring is in the right way. BIG end DOWN.

[lexnaturalis]

OK, you said earlier the trigger is all one solid piece. Was the trigger group assembled or did you assemble that?

I assembled the trigger group.

I literally meant just the trigger. This part:



The sides of that piece press hard against the wall of the lower, so I had to force it down. It doesn't just move freely inside the lower. If it's supposed to fit easily into the lower then that's bad... because mine doesn't.

[Lycanthrope]

Well it's supposed to fit with very little clearance, but you shouldn't have to tap her in with a mallet or anything.

Take the hammer out and see if the trigger will return on it's own when you pull it.

If it does, check that disconnector spring.

If it doesn't then you may need to dress up the edges of the trigger with a fine file, but this would be a first for me.

Lycannextthrope

[CrazyWhiteGuy]

pictures to help a little

[lexnaturalis]

Well I just took everything apart and the disconnector spring was put in correctly. I have another lower at home that I measured to compare it with the Del-Ton lower that I'm having problems with.

The opening at the top where the trigger group is put into measures 0.687" and the other lower measures 0.700"

I put the trigger group into the other lower (a cheap DoubleStar) and not only did it fit easily without forcing it, but when I pulled the trigger and let go the trigger moved forward as expected.

I'm starting to think I might have an out of spec lower. Would filing the trigger to fit the slightly narrower lower be better (or at least not worse) than just returning the lower and getting a new one?

edited to add: Also, how hard will it be to completely disassemble the lower if I have to return it?

[39flathead]

Since you used all Del-ton parts, I would send the whole assembled lower to them and let them fix whatever is wrong, it is after all their screw up going on what you are describing.

Sometimes fitting is required, but it sounds like you got some pieces that were passed over by quality control.

[lexnaturalis]

Since you used all Del-ton parts, I would send the whole assembled lower to them and let them fix whatever is wrong, it is after all their screw up going on what you are describing.

Does it matter that I bought the lower locally and the LPK from them directly?

[CrazyWhiteGuy]

Does it matter that I bought the lower locally and the LPK from them directly?

i guess it depends on if you bought the lower from another individual or from a dealer. what do you think?

Warranty on DTI Rifles
Our Del-Ton rifles have limited life-time warranty. We will repair/replace any manufactured defects for as long as the original owner has the gun. Shipping items to Del-Ton are at the expense of the customer. Del-Ton will pay shipping to return item to customer. See Returns/RMAs/Repairs Guidelinesfor proper returns.
Please call us before changing out components on the rifle. Some changes may need special instructions or may void warranty.

i say call them up and see if they can do anything to help you out.
910-645-2172

[lexnaturalis]

i guess it depends on if you bought the lower from another individual or from a dealer. what do you think?

I bought it directly from a dealer, so I'm the original owner

i say call them up and see if they can do anything to help you out.
910-645-2172

I guess I can do that. It's just going to suck to have to pay for shipping to fix their screwup. Oh well, I guess next time I'll bring my micrometer when I buy a lower.

[LittleRedToyota]

It's just going to suck to have to pay for shipping to fix their screwup.

i had to send something back to stag one time and they e-mailed me a prepaid UPS shipping label so i did not have to spend money to send it back to them.

i would ask del-ton to do that...and, if they balk, maybe point out their competitors do it.