Functions fine in an old SP1 upper and an old barrel chopped to 7.5", both devoid of a gas tube. Mine kit uses the chamber adapter and I modded it with the ball detent and do not run the ABW. The Ciener M16 kits have run very well for me and a couple friends. I'm late to the party but here's my experience on the subject. Perhaps not compatible but their 5.56 mags are.Įdit the 30 rounders were on sale 1/2 price at their website no more. Just curious if you have tried the beretta ARX160 magazines.īeretta usually makes top notch stuff. I ask because it would be nice to have the option of moving the upper to another receiver without getting into legal issues.
You need the metal weight to run it in full auto, the smith and wesson mags fixed a lot of issues I had and run awesome.ĭo you think the 17" barrel will be as reliable ? The setup has been crazy reliable to the point a few friends have copied it(most with sbr lowers). Out of 800 to 1000 rounds fired we had 1 failure that was ammo related. I was at a MG shoot with some friends last weekend and it somehow was the most reliable MG we had out there. I have this setup with a bcm carbine length handguard so the can sits under it some. Use a better mag adapter to run m&p15-22 mags, a mcfaden loader to make loading even easier and run a can on the end. Get a cmmg 4.5 inch 22lr barrel, their bolt group, their sear trip and metal weight/forward assist adapter.
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