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Thread: AR Piston Upper - Not a DI vs. Piston Question

  1. #41
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    Quote Originally Posted by georgeib View Post
    PWS recommended cleaning interval for the gas system, involving the 30 second pulling of the handguard, is every 5000 rounds. Yep, 5000! So for all practical purposes, that's as close to "don't have to clean it" as you're ever going to get.

    I understand preferring DI over piston, and reasons behind it. I only own a single piston AR, the PWS mk1 mod 2, among all my DI guns. But I do find it strange that you'd be so butt hurt about someone wanting a piston gun... No where did the OP solicit opinions as to whether he should or shouldn't get a piston upper, in fact he seems pretty clear that he wants to know WHICH one to get. This begs the question in my mind why you're so angry about this.

    You don't like pistons? Great. Move on dude... It's really not that big a deal, is it?

    Correct, they recommend cleaning at 5K. I have cleaned at around 2k without issue.
    Front sight wasn’t even off much.

    For the money, I have not seen a better option in a piston gun than PWS.
    Proper Planing Prevents Piss Poor Performance.......

  2. #42
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    I will second PWS I've got about 3k rounds through my 7.62x39 runs like a dream suppressed it's my thermal hog/yote go to just love it. My buddy who nudged me to try PWS has Mk216 308 and 6.5, 5.56, 300BO and x39 needless to say he likes PWS. Like you I'd never had any cause to go away from DI, but since none of my rifles had AGB with a suppressor about ready to get out of jail I figured why not try it and it's run like a beast for me. DI is a great system too I just figured I'd give PWS a try and I have not been disappointed.
    Last edited by sasquatchoslav; 12-17-18 at 16:25.

  3. #43
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    Take a look at the Caracal CAR816A2. Nice design by one of the folks who was involved with the HK416, and another gentleman involved in the SIG 516 and MCX. Some history here and here. Passed some NATO testing. Wilcox manufactures them in the US for Caracal USA.

    They are well manufactured. Recoils about like a carbine-length gas system AR. My only complaint being I wish the hand guard was a few inches longer.

  4. #44
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    Quote Originally Posted by georgeib View Post
    The PWS system dumps the gas under the handguard. The handguard is easy to remove though, so cleaning is simple when it becomes necessary. There is an animation on PWS's homepage that shows the function well: https://www.primaryweapons.com/
    I thought it might be dirtier given suppressed and feeding it cheap steel, but I don't think I've yanked the handguard more than 3x in 3k rounds? It just doesn't get that dirty. Takes a whole 30 seconds to do it so it's simple just not finding it necessary.

  5. #45
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    Quote Originally Posted by vicious_cb View Post
    Doesnt their marketing show a tactical dude in a gas mask? I wonder what aiming system hes using while wearing a gas mask
    The gas mask in the picture is the single filter version of the Avon M53 which allows a normal cheek weld. He should have no problem sighting through his Eotech. I did a write up on it more than 10 years ago, and illustrate how you can achieve a normal cheek weld with it: http://www.militarymorons.com/equipm...otective2.html

  6. #46
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    Quote Originally Posted by militarymoron View Post
    The gas mask in the picture is the single filter version of the Avon M53 which allows a normal cheek weld. He should have no problem sighting through his Eotech. I did a write up on it more than 10 years ago, and illustrate how you can achieve a normal cheek weld with it: http://www.militarymorons.com/equipm...otective2.html
    Nice catch, the weapon in question still has a IR laser/illumination it seems. Do you think this is a real pic or just a mock up?

  7. #47
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    My advice, stick with HK or SIG. The others are widely known as junk, especially Adams.

  8. #48
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    Quote Originally Posted by vicious_cb View Post
    Nice catch, the weapon in question still has a IR laser/illumination it seems. Do you think this is a real pic or just a mock up?
    Absolutely no idea, brother. Your guess is as good as mine, but it's not uncommon for manufacturers to feature local LE agencies in their promotional pictures that have purchased their products, or worked out some kind of mutually beneficial arrangement.

  9. #49
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    That's probably good advice, only HK, Sig, and LMT have substantial military contracts AFAIK. LMT with their NZ and UK contracts.

    Well, I guess you could say the Wolf imported Taiwanese military upper too. Those got decent initial reviews but I haven't been keeping up.

    Adcor just won a lawsuit alleging that Beretta stole their technology, and were part of the final down select for the Individual Carbine Competition (ICC) of 2013. I also have not been keeping up with them either.
    Quote Originally Posted by HKGuns View Post
    My advice, stick with HK or SIG. The others are widely known as junk, especially Adams.
    Sent from my Pixel 2 using Tapatalk

  10. #50
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    O58HD,

    Get a MR556 upper. Also, talk to montrala about them, as he's a great wealth of info.

    Despite what the errornet says, they're phenomenal guns.

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