Best Piston AR Upper

[nyla]

I am looking for a piston driven upper to throw on a new build. I have been hearing so many different opinions on what I should get and wanted to see what opinions here are. This is just for fun/range toy. I was looking at adams arms and primary weapons systems so far but I know there are a lot of other options. I'm sure this has been discussed before but what I've found seems to be outdated.

[TI-Tick]

PWS, LWRC, LMT.

[nyla]

PWS, LWRC, LMT.

LWRC and LMT are a bit out of budget.

Do you know anything about the PWS MK1 Pro? It is affordable and looks solid although I can't figure out why it's so much cheaper than the other ones they sell? This is the one I was looking at

[pancakes go]

if LWRC and LMT are out of the budget, PWS will be too. have you looked at Adams Arms?


$649 is a good deal. does it come with BCG?

[FeuerFrei]

I run a gen 1 POF and 2 gen 2 POF uppers. I'd buy again if I needed to. Fantastic barrels and accuracy.

Good affordable upper is Adams. Solid/reliable and good quality.

[Scratch705]

people forgetting about the Wolf A1 Upper.

Based from the Taiwanese Army T91 rifle.

https://aimsurplus.com/wolf-a1-223-5-56-gas-piston-upper-receiver-barrel/

[mr goodguy]

If you wantvonly the best youl never go wrong with Adam arms piston upper.

[pancakes go]

Wolf A1 is an option but the gas port is too large and causes hard ejection and wear

[Pistol Caliber Carbines]

Barrett REC7 Gen 2 is the best. Period.

Good luck finding one in stock if you want 5.56
6.8 seems to be available.

[k1dude]

This is an intriguing option I've been looking closely at.

[chairmnofthboard]

I have an Adam's arms piston. Works fine after I switched to a roller bearing cam. I also slightly notched the upper recieved to clear that bearing.

Now it's 99.9% reliable and easy to clean. The balance is front heavy, but other than that, I enjoy shooting it.

[kcheung2]

LWRC and LMT are a bit out of budget.

Do you know anything about the PWS MK1 Pro? It is affordable and looks solid although I can't figure out why it's so much cheaper than the other ones they sell? This is the one I was looking at

Do you want "the best" (see my sig line) or do you want something that's in your (undisclosed) budget?

[sigstroker]

SIG MCX, but that's kind of spendy.

Cheaper, but still not cheap, there's the Brownell's AR-180 "tribute" upper.

[Mandingo27]

Mk1 pro is the 1st gen. They're currently on gen 2

[pancakes go]

also know that with whatever brand you choose, the parts will be proprietary