…LWRC M6A2 (mine has the 14.5" barrel) I’ll be ordering a RRA 2 stage trigger for it in the near future. It’s the de color like the pic.

…LWRC M6A2 (mine has the 14.5" barrel) I’ll be ordering a RRA 2 stage trigger for it in the near future. It’s the de color like the pic.

Enjoy it, I’m going to be sending mine in to have them rebarrel it with a 10.5" barrel.
Nice! Is that a class II or III?
What is the forums opinion on these uppers? GTG, or not worth the money?
Top notch rifles in my opinion.
Not worth the money IMHO, though they seem to work. But then again so does my Colt rifle which was less than an LWRC upper.
If you want a piston AR upper…the best one is not available.
The LW works as advertised and they seem to stand behind their product. People I trust shoot the crap out of then (I mean LOTS of rounds) and I have heard no bad news.
The whole Colt costs less argument is true to a certain degree, but precision machined piston parts cost more to make than a gas tube. Add the cost of a high quality FF rail system, Magpul stock, etc. to a 6920 and the numbers get pretty close.
They shine in the sub-16" versions. Short DI guns are hard on parts, and run not-as-well as 16" and up guns. Piston designs alleviate some of this.
If I was gonna buy a new gun anyway I’d look into them. I wouldn’t replace a gun that still worked, though.


I just finished a Pat Rogers 3 day carbine class. There were two in the class that ran well. One was not cleaned the entire class. If you get a chance to train with Pat Rogers, do it.
Paul Howe of Combat shooting & Tactics is working with them to produce a carbine with his specs and company’s name on it.
M4 I am glad you posted your thoughts in this thread. Hoping I am not hijacking the thread, are pistons so much of an improvment that say I would be better with a LWRC M6A2 as compared to a Noveske N4?
I already have my 6933 and am looking for a non-NFA patrol rifle. Adding the MagPul parts to the Noveske is going to take it up to the LWRC price level anyways so the pricing difference is of no concern. Both rifles are also highly durable so that too is a moot comparison, so I think.
Question is, in the piston that much of an improvement over D.I. or is it just complicated a rifle that should be kept simple and to the point for patrol work?
The LWRC M6 base model is pretty much the same price as a Colt 6920.
ZGXtreme. LWRC does have a N4 style barrel in the works. Shouldnt be that far down the road. Is the piston an improvement? Some say yes some say no. From all the posts and looking into LWRC I have only seen one person have a problem with the piston system its self. If I remmber it was the little cup that attaches the gas block to the pistion. It was some fluke random flaw and wasnt found till the piston was taken apart for cleaning. But up to that point it kept working from what I remmber.
LWRC has a good group of guys. They are top self with there customer service. Also as busy as they are. They still take the time to hit up there forum and reply to questions.
As usual, M4Guru gave concise, accurate, and cogent advice.
For most shooters, a 16" DI Colt 6920 will meet all their needs.
If you are using a sub-16" upper and are running the gun hard–shooting thousands of rounds per month, the better piston uppers like the HK416 and LWRC are definitely more reliable and durable. Some recent military shooting demonstrated that the HK416 exhibited substantially greater reliability and 3-4 times the durability of a Colt M4, with significantly less need for maintenance. The LWRC piston uppers are proving to offer similar advantages.
In addition to short barrels and big round counts, I would really recommend the piston operated weapons if you are going to be using a suppressor, less fouling and longer life time for parts due to less heat build up.
Our HK416/417s have been ticking like clock work, suppressed or not.
Last friday I was doing some testing on a mount prototype with a HK416 w/ 10" upper and shot 8 magazines on semi auto ( that particular range did not allow full auto fire ), running through the mags at a very rapid rate.
At around the 6th magazine, with the bolt locked back, took off my glove and touched the bolt head, barely warm.
You bastage!!! That’s just wrong…
I do actually need them in my work ![]()
The primary reason for our purchase of the HK416/417 family of weapons, among other weapons we purchase yearly, were that the above mentioned weapons have been and will be adopted by several units on this side of the pond as well.
The second reason being the reliability and durability in the long run, the weapons are tools in testing and will see a lot of rounds through them. Obviously they are not wonder weapons, but I would expect to be able to put more rounds through them before parts exchanges than on DI operated weapons.
Keep in mind that reliable folks report that the 416 and other piston uppers are harder to suppress and are not as quite as quiet (4-6 dB louder) as equivalent suppressed DI uppers.
Wow - is this an excerpt from the recent “dust tests” that supposedly ENDEX’d around Thanksgiving? If yes, or any other test, please share and enlighten.
Thanks!
How are they harder to suppress? I thought that was one of the strengths of the piston systems that they were the cat’s ass for suppressing.
We have not yet metered our HKs, but from what I have seen of the few public measurements with HK and LWRC and others, there is some variance in the results achieved, some louder and some not.
Obviously sound suppression is only of the advantages achieved with the suppressor, but keeping it at hearing safe levels is of course important.