Originally Posted By BrewerJA:
I personally do NOT own a polymer lower, im a metal gun guy, however i went out shooting with my wife on saturday and met up with some buddies who DO have a polymer lower build. I had only seen pictures and comparisons of them from here and saw them under the glass at turners and walked right past them. Inhad no interest whatso ever. Anyway, back to the story; were at the range slinging some lead with our AR's and my buddy says here; check out the poly lower i just built. So we swapped guns for a little bit. First thing i noticed was the rough plastic texture of the lower. I gave it a once over and said not bad, lets see how these plastic triggers feel. And suprisingly enough, very little creep and almost as smooth as my PSA LPK with a polished hammer and trigger and set screw mod. After half the day went by, i was watching him ring some steel with his gun and i noticed the trigger and hammer pins both walking out of their holes. Not good! So i cleared his gun and pushed the rear take down pin and wrestled the hammer to get the hammer pin back in and recentered the trigger pin. I dont know if thats attributed to the LPK in the lower, or the lower its self but, i was turned off of plastic, i mean polymer,... From that moment forward. I agree, for a .22lr plinker go for it, or for the gun your wife will shoot 7 times in her entire life, GO FOR IT! But if you want something you can depend on for obamagedon doomsday shtf type situations, id probably steer clear of these. One of my worrys is, i could see snappjng off one of the ears on the bolt catch or,...stripping the threads while tightening the grip screw, or if you knock somebody in the head with a vertical/horizontal buttstroke, busting the stock off at the plastic threads on the buffer area. Are these poly things durable enough to take the kind of abuse a marine or foot soldier might throw at his weapon? We just dont know yet, but so far,...having a trigger pin walk out on me mid firefight os enough to scare me away from those things. Eventhough its not a catastrophic failure, it takes gou out of the fight, and the bad guys dont stop shooting when your gun is down. Thats just my humble opinion. So take it for what its worth. Listen to the other guys,... I cant reccomend a poly lower for anythjng other than recreational use.
Was it the fault of the lower or was it installation error? My first lower I ever assembled did that until I realized I had the pins in backwards and the "feet" of the hammer spring weren't holding it in place. Very common error and easy to have happen. Wouldn't be the fault of the lower in that case.