Make You Think Twice Before Buying a Polymer Lower Receiver

[TomMcC]

Come on guys,,JB Weld,,Super Glue is soooo old school !!!

Yeah, you're right, JB Weld, that will most definitely fix it. I use it to fix my engine blocks when I throw rods through them. That stuff is amazing.

[MAUSER88]

Nothing I would ever even consider buying.

[Joker]

What’s the story? Did the AR have to be mortared?

[defense523]

Add to the fact that HPR ammo has been discontinued for YEARS and was know to have...1 or 2 QC issues to go with their KBs, and you have a catastrophic failure waiting to happen.

[Rayd8]

I’ve seen a few iterations of 3D printed lowers. Two that I recall reinforce this area specifically with additional material and/or a hose clamp.

I haven’t seen one complete a multi thousand round run though.

[biker70]

but JB weld works

[3beansalad]

Add to the fact that HPR ammo has been discontinued for YEARS and was know to have...1 or 2 QC issues to go with their KBs, and you have a catastrophic failure waiting to happen.

I read to say it's possible this photo is old and being used to spread hysteria about polymer gun parts. Thought provoking.

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[TomMcC]

I read to say it's possible this photo is old and being used to spread hysteria about polymer gun parts. Thought provoking.

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Maybe rooster needs to explain to us how old this photo is and his purpose for throwing it up.

I still wouldn't use a modern plastic receiver for anything other than a 22 LR. And probably not even for that. There are cheap aluminum lowers available.

[blfuller]

Only polymer one worth buying is the KE Arms.

[HKGuns]

Maybe the OP should have used one of those $700 lowers he’s trying to peddle instead?

I see no reason to roll the dice on Polymer when you can buy any number of well machined, in tolerance aluminum stripped lowers equal to or less than the cost of this trash.