Polymer AR-15 Lower
From PlumCrazy. Interesting concept. Unlike the CavArms, it looks more like a traditional lower. And at the prices I see complete lowers going for, it might be fun to beat one up.
Update: From comments, looks like some issues reported and it may be better suited for a dedicated 22LR.
August 19th, 2011 at 9:57 am
Read up on those at AR15.com before you buy.
The PlumCrazy lowers have been known to have issues. They crack where the buffer tube screws in. Standing theory is that its because they are a direct copy of a standard AR-15 lower in polymer and the polymer isn’t strong enough at a few points.
General consensus seems to be that they are great for a dedicated .22 gun, but not the best for a proper AR.
August 19th, 2011 at 2:55 pm
Anecdotal evidence, sample of one yes, but my roommate has one and the trigger is heavy(ish) but ridiculously crisp with almost no overtravel, shoots just fine and went through a 1 day carbine course with ~500 rounds fired and no issues.
I’ve also heard reports on forums of a few gun ranges in vegas that had them converted to FA and have no issues. The owner sounds like a stand up guy too. This is all 2nd, 3rd or 4th hand info, so keep that in mind.
August 21st, 2011 at 12:20 am
Yeah I have seen a few of these and they seem to hold up o.k.Its probably like anything its who is using and maybe abusing it that makes the difference.