Justinmd,

First, I really appreciate you guys discussing this with me because I learn something new every time. I know you have quite a bit more trigger time than me, but I'll try to answer all the same.

Not what I was trying to correlate. I swapped the old bolt and carrier for the new model because I was worried the out-of-battery ignition cracked the old bolt carrier in a way I could not detect. The rear of the Wolf case ruptured around the primer and the case was wedged very tightly in the chamber. I am 99% sure the primer was improperly seated in the casing. Gunsmith agreed.

Once I swapped the old bolt for the new, the minimal buffer tube wear associated with carrier tilt went away completely. My old extractor used to shave a bit of brass off the cartridges ... the new one does not. The old bolt cam pin used to show a lot of polish. My replacement cam pin shows no polish, suggesting a smoother rotation. These are the only advantages I would associate with the new bolt. It summary, it just fits better. The minimal wear signs I experienced with the old carrier never caused any malfunctions ... I know cam pin gouge shows up in DI weapons too, I just like that the new bolt operates so smoothly.

My M4 failures were failures to feed or to extract. I had three failures within a period of several months. This M4 was relatively new (1-2000 round count) so I replaced the extractor to fix this issue without success. My M4 only malfuctioned when it was dirty from sustained fire, hot from sustained fire, or when sand got inside the chamber. My LWRC operates at a cooler temperature, the barrel gets hot quickly but the chamber does not, so it stays lubricated better, and since no carbon fouling gets in the chamber, I feel I can run it dirty, without lube, with a much larger margin of error. Hence no failures to feed or extract at 8000 rounds.

I believe you already mentioned LWRCs advantage over other piston ARs, which is the Op rod doesn't break, and the components are over-built. It is slightly front-heavy as a result.

Very Respectfully,

Barn Owl

Peregrino, you have a sharp armorer! haha. Seriously, the case could be made for any of the current 5.56 rifles over any of the others. It comes down to price for some, coolness for others, features for others yet, etc. It really is the case that there's not much new under the sun in small arms. Until we get new propellant technology or laser type stuff. Even the caseless stuff really isn't that big of a deal, you save 30percent on the weight of ammo, the cost theoretically goes down because of no more brass, but the gun basically the same, still a long metal barrel, a magazine you have to change, etc etc.

BO, a lot of guys here have a bunch of trigger time, many have much more than me. There is a wealth of knowledge here, from the professional end user aspect to the design/engineering aspect.
Justin

Just for clarity sake. LWRCI does not make a 5.56 REPR variant.

They have a website, the search tool works there.

Anyone who wants to shoot one around May of next year, just let me know. You buy the ammo, you can judge for yourself. I'm local to Bragg and don't mind if you sling lead from mine.

I'm partial to the company. I have 3 uppers, and I've not experienced problems yet. I'm also good friends with some in the company.

They have addressed the REPR mag catch issue, and shitty thing is it happened in the first place.

The DEA has them on hand for missions abroad, and there are a number of the guys that are former trigger pullers from different walks of life that like the carbine. I asked one of them other day and he stated the REPR is not conducive to their mission, as the people they typically roll with have the precision role covered. Food for thought.

And again, Paul Leitner-Wise is not a part of the company, and hasn't been for sometime.

Facts, not assumptions gents.

JustinMD, thanks for all the knowledge.