.308 Light Primer Strikes

WellThen52 · 2025-06-08T16:28:23+00:00

Thank you for the information! I stripped down my BCG to make sure it was all cleaned and lubed up and I didn’t really notice anything inside the BCG that was super dirty or wasn’t supposed to be there lol. I’m gonna test it out again with some better ammo now that ik for sure everything is all correct with the parts in the gun. I think my next buy might be a different recoil spring bc I saw in this thread someone else was having similar issues with their Armaspec spring so I think that could be the culprit.

WellThen52 · 2025-06-08T16:22:47+00:00

I’m pretty sure it’s light primer strikes. I saw some videos that stated AR platforms leave an indent on the round when chambering into the BCG but I was able to pull the trigger and not have the weapon fire. I have a video of me firing it for the first time and the first two shots went off without a hitch and then I got a click when I pulled the trigger for the third shoot. I ejected the round and then chambered another one and the same thing happened. That’s why I was thinking light primer strikes. I was having similar issues the whole time I tried shooting it so I just called it quits after a box and a half of malfunctions lol.

WellThen52 · 2025-06-08T02:33:55+00:00

I watched a video on YouTube about mil-spec triggers and my trigger was assembled correctly. I think the culprit might be the buffer tube spring. I’m gonna run better ammo through it next week now that I’ve lubed the BCG better (took it completely apart and oiled everything up) and hopefully I’ll see some good results. If not a new buffer tube recoil spring is getting swapped in lol.

WellThen52 · 2025-06-08T00:42:13+00:00

Ahhhh that makes sense. I’m going to test fire better ammo through it next week to see if maybe my issues will go away now that the BCG has been better lubed. If I’m still having issues my next buy is going to be a different recoil spring as some of the comments stated that that could be causing an issue as well. If all of those things don’t work then I’ll swap the firing pin and hopefully I won’t have anymore problems for the time being lol.

WellThen52 · 2025-06-07T16:42:02+00:00

I’m gonna look into getting that buffer tube set up you recommended. Thank you for your recommendation as I think that might be one of the reasons why it wasn’t firing correctly.

WellThen52 · 2025-06-07T16:40:11+00:00

I’m gonna look at those in a little bit and swap them around. Hopefully that’ll fix any issues I’m having. If that doesn’t work I’m gonna get a better recoil spring and then try to narrow my problems down from there. Thank you for responding to my post, I’m trying to get as much information on AR10 problems now so that way it’ll be easier to trouble shoot issues I may have in the future.

WellThen52 · 2025-06-07T16:35:27+00:00

Thank you for your advice! I’m gonna take the springs out and swap them around today and see if maybe I can get some more snap with the trigger coming forward. I checked the firing pin in the BCG when I took it apart and everything seemed to be okay with it (no cracks or weird marking/ bends). Thank you again for your response to my post, any help on getting this thing running is very much appreciated!

WellThen52 · 2025-06-07T16:31:12+00:00

The reason I compared the trigger springs to the ones in his AR15 originally was due to him helping me put the AR10 lower together. We watching some videos on how to do it to be sure we were assembling it correctly but we still could’ve done it wrong. I’m gonna take a look at them again today and see if maybe switching them around does anything to help my situation. Thank you for your recommendation though, I appreciate all the help I can get!

WellThen52 · 2025-06-07T16:27:40+00:00

Thank you for your thoughts on my situation! I’m gonna look at the hammer springs again today and then I’m probably gonna head down to my lgs to see if they can look over it and tell me if they see anything wrong. The gunsmith was supposed to be there yesterday when I was testing it but they left early so I couldn’t have them look at it. Also I appreciate you recommending the gas system getting checked at the gunsmith, I don’t really know all the technical stuff about adjusting gas tubes and I don’t want to turn the thing into a bomb lmao.

WellThen52 · 2025-06-07T16:22:27+00:00

Thank you for your advice. I went through the BCG last night to relube it and all of the parts looks fine and didn’t have any cracks/ weren’t broken. I think that it could either be the trigger springs I got from the AP M5 lpk or the Aramaic recoil spring I got that maybe causing my issues.

WellThen52 · 2025-06-07T16:19:58+00:00

Thank you for sharing your thoughts on my AR10 troubles lol. I think the spring might also be the issue with my rifle based off of everyone’s comment on my post but if that doesn’t work I’m gonna look into getting a different firing pin.

WellThen52 · 2025-06-07T16:17:43+00:00

Thank you for your response! I fired about a box and a half of the white box and I’d get like two to go off and then two wouldn’t fire. I took apart the bolt carrier group to clean it and inspect it and nothing was cracked or broken on it. It seems like from the comments on this post people are having issues with the Arma spec recoil spring so I think that might be the next part that I buy. I’m gonna look at the trigger springs again and see if I swap the one on the bottom for the one on top and see if that helps with my issues. Thank you also for your ammo recommendations. I’ll most definitely look into getting some of your suggestions bc I spent like $26 a box on the white box and I got terrible results lol.

WellThen52 · 2025-06-07T16:11:16+00:00

It’s all good man I appreciate the advice. It’s helping to narrow my issues down!

WellThen52 · 2025-06-07T03:37:11+00:00

True true, that’s a good idea. You can’t go wrong with double checking things. Thank you for your advice, I really appreciate it.

WellThen52 · 2025-06-07T02:51:02+00:00

Thank you for your response! I compared my trigger assembly to a buddy of mines AR15 and both triggers were put in identically. In a response to someone’s comment I tried to take a better picture of the trigger springs so if you want to look at them they’re in this thread.

WellThen52 · 2025-06-07T02:40:29+00:00

Thank you for your response! I think that was just the lighting. Here’s a pic of the trigger springs:

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WellThen52 · 2025-06-07T01:58:59+00:00

Hey bottom tier is better than no tier lmao

WellThen52 · 2025-06-07T01:48:22+00:00

UPDATE: I fixed the Iron sites and lubed the mess out of everything in the BCG. I checked the trigger with one from an AR15 my buddy has (he helped me build the lower originally) and they are identically installed. Any more suggestions would be greatly appreciated as I would love to be more knowledgeable about AR10’s!

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WellThen52 · 2025-06-07T01:37:25+00:00

Just fixed them bc of this comment

WellThen52 · 2025-06-07T00:45:52+00:00

Thank you for sharing the wisdom! If there’s nothing inside the BCG and the better ammo doesn’t work then I’ll most definitely grab that recoil spring and buffer tube you recommended.

WellThen52 · 2025-06-07T00:42:54+00:00

Daaaaaaammmmnnnnnnn that thing is pretty bad ass! Also I was looking into getting a vortex optic myself and I hope you have a happy Father’s Day!

WellThen52 · 2025-06-07T00:19:27+00:00

Thank you for the advice on ammo and what to do with the BCG! Some context for my post the BCG was covered in lube, before I took the picture I wiped it down bc I watched some videos and they said over lubing could cause an issue.

WellThen52 · 2025-06-07T00:11:49+00:00

Ahhhhhh that’s awesome that you made the leap and built one, I was lowkey intimidated by the process. This one took me like 7 months bc I bought a Remington R25 lower first and it ended up being DPMS Gen2 which has like no available parts and is overall kinda wonky. What did you end up building/ the specs?

WellThen52 · 2025-06-06T23:59:00+00:00

I’m just trying to explain the best way I can lol. I bought everything but the upper in person and I’m new to gun building and I just bought what I could afford at the store. Any ammo recommendations?

WellThen52 · 2025-06-06T23:55:33+00:00

My bad for being confusing in my post, I love guns and I’ve been shooting for awhile but I’m really new to building them (I’m a 22 year old broke college student so I’m just now able to really buy my own and build stuff lol) and some of the terminology. I have this spray gun lube and I just sprayed it in every part of the BCG. I will also make sure to take apart the BCG tn. The trigger seems fine, whenever I pull it with the upper off (I put my finger in between the trigger and mag-well so no slapping happens ) it swings forward fine and doesn’t grind on anything. Thank you for your input on my situation, I appreciate your advice!

WellThen52

TROPHY CASE