Full-Auto Fire With A Cheap, Polymer Lower Receiver [VIDEO]

Full-Auto Fire With A Cheap, Polymer Lower Receiver [VIDEO]


While packing up my desk for a latest transfer, it dawned on me that my pen holder of the previous eight or so years was really a New Frontier Armory stripped polymer decrease receiver this complete time. A day later and an M16 full-auto hearth management group, the suitable federal licensing, and a few curiosity mixed to search out out if a $22.99 AR-15 lower receiver product of fiber strengthened plastic was sturdy sufficient to type the inspiration of a machine gun.

Coincidentally I had additionally simply bought a number of ATI Schmeisser S60 magazines (accessible at Brownells HERE) and figured testing ’em out at full-auto pace was nearly good.

The S60s loaded up 60-rounds-deep extra simply than I anticipated, although for certain the spring system is stiff and when you hit about 40 rounds there’s a little bit of a thumb exercise concerned.

If you’re cleansing these dangerous boys be careful while you pop that baseplate off! The giant spring within the quad-stacked part uncorks like a coked out genie. Keep a deal with on it, and preserve your face out of the way in which.

With an outdated tank of a YHM suppressor screwed onto the enterprise finish, I proceeded to dump 120 rounds via the polymer marvel with solely sufficient time in-between magazines to maneuver my digicam round. The higher was screaming freakin’ scorching, and the end was burned off about 1/three of the silencer.

The motion photographs are within the video embedded at prime, after all, however the punchline is that, after the higher cooled down sufficient for me to the touch and take away, the New Frontier Armory decrease was completely tremendous. 100% simply nearly as good as new in each final means.

Which shouldn’t be a shock. An AR15 decrease receiver doesn’t usually have much in the way in which of calls for placed on it. It holds the journal as an alternative in area, it holds the set off as an alternative, and it holds the receiver extension and inventory what place they belong. Your shoulder is meant to help the inventory below recoil, so even that rear threaded space of the receiver has a reasonably straightforward life should you’re shooting the rifle in a standard style.

Frankly, you may (and may) make a decrease out of wood and it will be completely tremendous. Yes, I promise I’ll do it.

Likewise, the ATI Schmeisser magazine carried out flawlessly. I did have a failure to fireside stoppage someplace in the midst of the ATI-fed 60 rounds, however the spherical stripped correctly and chambered absolutely, so it was a set off or laborious primer difficulty and nothing magazine-related. Since this vary day I’ve shot the S60s a bit extra and have had zero points. They seem to feed reliably, feed strongly sufficient to maintain up with full-auto, and are very top quality.

If an space on this polymer decrease was going to fail ultimately, I consider it will be across the pivot pin. After 120 rapid-fire, select-fire rounds the chamber space and barrel nut space of the higher had warmth soaked fairly totally and that warmth was starting emigrate into the pivot pin space of the lower. At some level I consider it will soften up after which start to soften.

That mentioned, it’s attainable that below continuous full-auto hearth the fuel tube or one other element within the higher could properly fail first.

Is a polymer decrease adequate for machine gun use? Yes, sure it certain is. Though I could return this one to pen holder obligation.



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