Hope someone can help me out here.
I bought a LNIB DPMS Oracle, at a price I couldn't pass up. After I got it home and started tinkering with it, I found out that the BCG would stick when I pulled on the CH. This would come and go, intermediately, and my first thought was, "this is why I got a LNIB gun so cheap".
I stripped the bolt, couldn't find anything, inside of upper receiver looked great, I couldn't find anything wrong. Bolt closed with no problems, gas block and tube lined up perfectly.
It just stuck randomly. Anyway, I did the following, making so many changes that I thought the problem might be the stock BCG and stock CH.
I changed out the hand guard and gas block with a Midwest Industries 15" rail, and I think it was a Bravo Company gas block. Changed out stock DPMS BCG and CH, with a Rainier Arms NiB BCG and a Bravo Company MOD 3 CH. Other stuff, CMC 3.5 trigger, KNS Non Rotating pins, MBUS, Scope and Magpul CTR, couldn't have any impact.
So I started pulling the CH and dry firing, and soon I would yank on the CH, and it was stuck again. Had to keep "popping" the CH, and eventually it will let go and charge the bolt again. Same thing as with the DPMS BCG and stock CH. Checked the cam pin "ramp", it didn't look like it had any burrs, or any other obstructions.
Out of desperation, I lubed that bolt until it was dripping of CLP, and kept working the CH back and fort, approx.a 100 times. It finally started working every time.
Due to snow (we got crazy snow for KY), I haven't been able to get it to the range, to shoot it, but after today, I'm not sure I should. I pulled it out of the safe to get a shotgun out for a hunting trip, decided to give the CH a good yank, confident it would operate just fine, and bam, it stuck on the first try. I cycled it a few more times, and it was o.k. Today, I ordered a POF roller cam pin to see if that makes the problem go away. Some folks have told me that this isn't unusual and just to shoot a 100 rounds through it and the problem will go away
I'm leery of this, but don't know which way to turn. This rifle has never had a live round chambered, at leas since I bought it. So ammo isn't the problem. The barrel and lugs all look good to go.
I'm fresh out of ideas, and hoping the roller cam solves the problem, wishful thinking, probably.
I'm open to about any suggestion including melting it down for scrap metal. Seriously, any ideas, thoughts or other knowledge anyone could give me would be greatly appreciated.
Thanks much,