Put together my first polymer lower, and I gotta say, I’m pretty sure I’m not getting any more of these. I bought a pair of them in November and finally decided to get around the assembly for them, and they just feel so cheap. You might say, well, that’s what you get for being cheap and going polymer. The thing is… they’re not any cheaper than a basic forged aluminum lower. In fact, I paid a good sight more for these than aluminum. The trigger and hammer pins stick out. The grip screw feels really weird to install… it requires a lot of force to turn the screw, and when it goes in, it feels like the section of the lower it’s going into is being spread apart by the screw. It’s just really tight, I guess. It feels like the walls of the magazine well are bending when I grip it tightly. I’m having problems with the safety… I can’t get it into the FIRE position. Maybe that’s a problem with the lower part kit I used, I still haven’t determined what’s wrong.
Of course, I have nothing to say about reliability, as I’ve yet to put an upper on it and shoot anything. I’m really not seeing the benefits of it over the firm feel of aluminum. Of course, it does feel light in the hand, and since it’s polymer, it fits the same texture as the butt stock. It’s cute, but I think I’ll keep the number I own at 2.