Delaware Concealed Carry Forum

General Gun Discussion => Rifles and Shotguns => Topic started by: groundgrid on September 20, 2013, 02:26:00 AM

Title: AR15 80% Polymer Lowers
Post by: groundgrid on September 20, 2013, 02:26:00 AM
Does anyone know anything about this company?

www.polymer80.com

I ordered one to check out with my CC in case they are just vaporware.

It should be much easier to complete than an aluminum 80% lower
Title: Re: AR15 80% Polymer Lowers
Post by: Bmel17 on September 20, 2013, 05:54:15 AM
lowers and parts are plenty abound now.  Also almost back to normal pricing too.  Based on that seems kinda pricey to me, especially if you went with the cerakote option
Title: Re: AR15 80% Polymer Lowers
Post by: Adrenolin on September 20, 2013, 06:34:03 AM
Don't know anything about the company or their specific product but beware of 'easier'. I've heard they are less forgiving and easier to mess up then the aluminum lowers. A slight bump or slip and you can over drill these whereas with the slow / gentle pressure required on aluminum can save you. Being patient and doing 1 or 2 I can see these being completed in short time.

Bmel17.. that's true however there are advantages for some people with these. Many people take great pride in building something themselves rather then simply purchasing it completed for example.
Title: Re: AR15 80% Polymer Lowers
Post by: TwistedKarma on September 20, 2013, 08:44:14 AM
If they were in case, "easier"  , then they would not be as strong?
Title: Re: AR15 80% Polymer Lowers
Post by: Bmel17 on September 20, 2013, 01:21:16 PM


Bmel17.. that's true however there are advantages for some people with these. Many people take great pride in building something themselves rather then simply purchasing it completed for example.

I completely understand, but I just see the extra $20 for a stripped lower as a wise investment.  I'd hate to have a $70 paperweight! Unless you buy the jig and are planning to do a few of these to make it worth your while.  Same coin to me as the casual reloader who reloads 100 rounds a year.  Initial investment never outweighs the benefit for an extremely long period of time.

The nice thing about the 80% to me is, that it is NOT a receiver :) I've wanted to buy a few to have sitting around just in case. 
Title: Re: AR15 80% Polymer Lowers
Post by: Bmel17 on September 20, 2013, 01:34:32 PM
If they were in case, "easier"  , then they would not be as strong?

Youtube polymer lower torture test.

I can't speak for this brand, but I have seen other poly lowers in action and the are not as strong as the metal ones, but they aren't complete crap. The buffer tube part is prone to breaking under stress like being dropped on the stock. 

IMO, an AR built on a poly lower not going to be my SHTF gun, but one on a metal lower will be.  I do think they are just fine for a range weapon.
Title: Re: AR15 80% Polymer Lowers
Post by: Adrenolin on September 20, 2013, 06:30:41 PM
I completely understand, but I just see the extra $20 for a stripped lower as a wise investment.  I'd hate to have a $70 paperweight! Unless you buy the jig and are planning to do a few of these to make it worth your while.  Same coin to me as the casual reloader who reloads 100 rounds a year.  Initial investment never outweighs the benefit for an extremely long period of time.

The nice thing about the 80% to me is, that it is NOT a receiver :) I've wanted to buy a few to have sitting around just in case. 

I agree its not a money saver. Buying and completing these will in fact cost more. For most people its not about the money but about the project. The jig is not necessary though they do make the job easier. All the measurements and specs are available online and being careful while measuring correctly they can be done without a jig. That said, I'd use a jig lol. It's to bad their jigs are said to only be 1 time use but for 15$ its acceptable. Some (https://colfaxtactical.com/products.html) are upwards of 130$.

I could buy and save money by purchasing a Nissan Versa or Chevrolet Spark (being the cheapest cars in the USA) but I choose not to. Instead I have an 4x4 Ford Exploder that I enjoy maintaining myself and a 40+ year old Shelby/Mustang worth more then some folks homes. Financially neither are wise investments. Sometimes we simply don't care if its worth it or not but look at the enjoyment we get from building something ourselves.

Question for you.. why buy a few and have them sitting around? Buy a few, dig out the drill press, mini mill, dremel, hand drill and files (ack!) and have fun making a couple. :)
Title: Re: AR15 80% Polymer Lowers
Post by: Lumspond on September 20, 2013, 07:52:30 PM
Ford Exploder. :)
I hope not!!
Title: Re: AR15 80% Polymer Lowers
Post by: Bmel17 on September 20, 2013, 08:10:47 PM


Question for you.. why buy a few and have them sitting around? Buy a few, dig out the drill press, mini mill, dremel, hand drill and files (ack!) and have fun making a couple. :)


Same reason I bought a fixer upper house.  I get it 100% but I just think for a poly lower $70 is too much $$

I would get a few metal 80%'s just for the reason I stated previously, they are not receivers.  So basically, crazy prepper/paranoid gov't reasons!

Title: Re: AR15 80% Polymer Lowers
Post by: groundgrid on September 20, 2013, 08:54:40 PM
All of the 80% lowers appear to be priced too high. Probably because, like you said, they are not "receivers"

I do have a couple of metal ones but will try the poly first for practice. In either case, it is not cost effective. However, learning how every single part fits together is extremely valuable. I usually avoid completely disassembling any of my guns.

It is mostly an educational endeavor with the bonus of an off the books & legal firearm when done.
Title: Re: AR15 80% Polymer Lowers
Post by: TwistedKarma on September 20, 2013, 10:14:29 PM
   Lets play Mr Rogers..   

 Poly.    =  plastic

Metal,   =  alum or steel.?   

Yes, I say this because , there are Alum lowers . 

And Steel lowers.   

Weld together plates,  with holes drilled ect. think about it.     
Title: Re: AR15 80% Polymer Lowers
Post by: Bmel17 on September 20, 2013, 11:27:41 PM
I prefer metal in general.  I do like the lighter aluminum a lot, but you are right on target with welding steel plates together!

Title: Re: AR15 80% Polymer Lowers
Post by: EricF1983 on March 17, 2014, 03:52:35 AM
I know I'm resurrecting an old thread here but....
I'd be careful with the poly lowers, the ATF raided a Ares Armor yesterday despite a restraining order.  The reason? Polymer 80% lowers...
They raided EP Armory, now ALL their poly 80%s are "out of stock". ATF claims the lowers were manufactured first with the fire control pocket then filled in with plastic. I'd be very cautious if I ordered from either EP or Ares. Figures this crap would start in Cali
All the metal 80%'ers I've seen are aluminum, usually 6061 or 7075. And the jigs are, as long as you don't screw it up, reusable.

http://www.guns.com/2014/03/13/ares-armor-halts-atf-raid-refuses-turn-customer-names-video/
http://www.bizpacreview.com/2014/03/16/atf-raids-gun-store-despite-restraining-order-protecting-customer-list-106684

http://www.thebangswitch.com/ep-armory-raided-by-the-atf/
Title: Re: AR15 80% Polymer Lowers
Post by: joep19934 on April 27, 2014, 02:41:48 AM
Its not just Ares Armor that's being looked into.
I guess the ATF is looking closely at everyone that is selling 80% Lowers ---->

http://www.eparmory.com/Current-News-s/1845.htm (http://www.eparmory.com/Current-News-s/1845.htm)

Title: Re: AR15 80% Polymer Lowers
Post by: ampb5rider on January 09, 2015, 05:55:40 PM
I have two Aluminum 80's, one complete and the other in the works. Being a Machinist has its advantages!
Title: Re: AR15 80% Polymer Lowers
Post by: Adrenolin on January 11, 2015, 05:43:21 PM
The great thing about the 80% lowers, regardless of plastic or aluminum material, is that anyone with an once of DIY in them can make one. Tolerances while best to be exact quite honestly can be off some and the weapon function fine. Taking your time, a few simple and very affordable tools (you don't have to spend more then 100$) and anyone can make one.

Most people initially think it's about saving money which it certainly isn't. Others think it's to have fully unregistered firearms and I guess that's a personal thing though not for me. I like tinkering, working with my hands, being creative and completing a project that's unique and when finished I can say, Made By My Hands.  ;D
Title: Re: AR15 80% Polymer Lowers
Post by: MarkB on January 11, 2015, 08:56:50 PM
The ATF has now made it more difficult for anyone to complete an 80% lower.  You can no longer go somewhere and rent or borrow equipment to complete the lower.  you can still legally make an 80% lower a complete gun but you need to have the equipment,  You can no longer borrow or rent the equipment or have someone do it for you.  ATF Ruling 2015-01.

http://beforeitsnews.com/alternative/2015/01/batfe-ruling-creates-new-hurdle-to-private-gun-manufacture-3088088.html   
Title: Re: AR15 80% Polymer Lowers
Post by: Adrenolin on January 13, 2015, 05:04:45 AM
Correction... You were never permitted to have someone else finish or work on an 80% lower for you. You could attend build parties but you technically still had to "press Start" yourself.
Title: Re: AR15 80% Polymer Lowers
Post by: ampb5rider on January 14, 2015, 04:18:00 PM
As Adrenolin said, it is not about the cost, at least for me when I can buy a lower for 50.00. It really is about "I" did it and it works! The satisfaction is in the doing.