All posts tagged best piston upper receivers

All of those gas piston guns out there….

There are many guns popping up that are now piston driven, everything from Ruger, Adams, POF, and many more.  One of the best levels of advice I’ve given to people when they ask about a certain firearm is to not be the first  one to buy it because you’ll be the first one that has to send your gun back when they find out there is a design flaw or an upgrade.  This happened with the Beretta 92F and we ended up with the Beretta 92FS, and even the LWRC M6A1 had some major internal changes after the gun was first fielded and this is considered the Cadillac of AR15 piston driven guns.

We’ve sold a lot of the LWRC M6A2 guns in the last year or so because they still are the kings of the piston guns.   Recently we’ve also sold a  lot of the Adams gas piston upper receivers which are different in design but I can’t tell you which is better or if they are worth what they are selling for until they have been fielded and  used on the ranges  long enough.   I’ve seen many minor issues with guns from spring flaws, weak pistons, making the bolt carrier group a one piece and eliminating the screws that keep the gas key in place.  These were sheering off on the guns after a  few thousand rounds but anyone that purchased these about 2yrs after they came out got the better version.

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Have enough guns? How about more upper receivers for your AR15?

I don’t think you even need to worry changing calibers if you want something different than a 556 upper.   I’ve seen guys turn an M4 Carbine into a varmint rifle with a snap of two pins on a lower receiver.  The real thing to look out for is changes in calibers, namely to a 5.45×39 upper.   Many times I’ve seen guys skip the hammer spring change and end up with a light strike issue with Russian ammunition. We sold a ton of the Smith & Wesson 5.45×39 uppers a few years ago but for some reason they just don’t seem to be available.

 

The LWRC M6Ak was a one off novelty deal which died a quick death and no word if it’ll ever happen again.
Right  now the biggest selling upper receiver we have are the Adams 5.45×9 uppers.  I had a customer take apart his gun side by side to my AR15 complete upper receivers and compare the piston differences.  There is a difference and I still love my LWRC M6A2 but this gun was a next best thing and a best thing for a 5.45×39 upper.  You still can’t beat the cost of ammunition for these guns and the  caliber does have a better reputation than the 30 caliber AK.   I’ve known guys that took hits from the AK it has so much energy that it just zips through you and the Russians finally caught on that the 5.56 was a better combat caliber.

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