I have a DPMS LR308 and the bcg isn't reliable. Price aside, who makes the best, bullet proof as possible replacement?
Who makes the best ar10 bcg
- Thread starter Alabusa
- Start date
LMT with the dual ejector bolt would be my choice.
Rubber City Armory has "blems" for sale fairly regularly, under $200. They also have OEM replacement/spare parts at reasonable prices, which is something to consider with the non-standardization of the platform.
KAK BCG's are well built, and also offer parts.
KAK BCG's are well built, and also offer parts.
If I may ask, what about your DPMS BCG is unreliable ?
The extractor. It likes to dump the pin and spring. Turns into a single shot.
Depending on the caliber .... all around I prefer the jp fmos
ArmaLite with the sprung firing pin
New KAC with sprung firing pin
JP has some of the best workmanship/fit/finish
I don’t like floating pins in the AR-10.
Your reliability problems might not be because of the BCG though. LR-308s are usually gas system and bent extractor issues in my experience, along with tight chambers cut with worn reamers in a lot of them.
I would diagnose your full system before zeroing on on the BCG.
New KAC with sprung firing pin
JP has some of the best workmanship/fit/finish
I don’t like floating pins in the AR-10.
Your reliability problems might not be because of the BCG though. LR-308s are usually gas system and bent extractor issues in my experience, along with tight chambers cut with worn reamers in a lot of them.
I would diagnose your full system before zeroing on on the BCG.
Reputable brands of DPMS pattern BCGs are pretty consistent these days with the bolt dimensions that affect headspace. That was not always the case, and chamber headspace should be checked. I would not recommend using an ArmaLite bolt in a DPMS pattern barrel.
None of the options talked about are DPMS GII compatible. Like BCP posted, Adams Arms was a source, and quite helpful for certain parts in the past, but I don't know what is currently happening there.
DPMS/Panther Arms was bought by JJE Capital (Palmetto State Armory) in the Remington Outdoor bankruptcy sale, and had talked about bringing back the GII line, but no firm date has been given. With the popularity of the Ruger SFAR and market dominance, they might not be considering it a priority. That and they didn't get any technical drawings or files for the GII in the bankruptcy sale, so it will have to be reversed engineered.
There is one source that does manufacture and sell some GII parts, including bolts and BCGs. They've only been in business a couple years and I haven't used them yet. Link: defense-depot,com
Palmetto made a knock-off GII soon after the GII was released, and I thought it had to have been licensed, but it wasn’t. They got a cease and desist and it went away I think. DPMS was kinda surprised they did that after all the RDT&E DPMS did to build the GII up from scratch, run all the rifles through pyramid testing, and develop the SKUs. The time and budget for that developmental work was significant.
I was surprised when DPMS went out too, since they provided so many parts to almost every AR brand in the industry.
But GII is its own animal, with its own receiver dimensions, its own mid-sized barrel extension, its own mid-sized bolt, its own extractor, it’s own AR-15 diameter carrier that is about 5/8” longer.
Colt was the first to dust off the old 1959 AR-10A when they introduced the Colt 901 in 2011 I think it was. If you look at the 901, it has a mid-sized frame, smaller than an AR-10. The 1959 AR-10A was what they were going to mass-produce before they started getting all kinds of orders for the AR-15, and switched the tooling per McDonald’s urgent wire message.
DPMS then did the GII, which came out at 2013 SHOT.
Then POF did the Revolution, which is an actual AR-15 size frame and BCG/barrel extension, with some differences in the lugs and metallurgy.
The .308 world only disperses more and more away from any hope of standardization, even within companies.
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