How well do polymer AR lowers hold up?
Yes, polymer 80 lowers are quite good. Our customers have loved them for quite a few reasons: They’re more affordable than metal lowers and jigs. They’re easier to machine and build with. They’re capable of taking some real abuse, as any good AR should.
Do polymer lowers break?
The biggest question people have with polymer AR lowers isn’t usually the fit of the product, it’s the durability. If a polymer lower was going to fail, it would be there. While the recoil of a . 223 Rem/5.56 NATO is minimal, that part of the lower still bears a significant physical load.
Can any AR Lower be built into a pistol?
A factory fresh AR lower receiver that has never been part of a firearm can be used to build a pistol, carbine or rifle. Attaching an AR-15 pistol upper assembly with a barrel shorter than 16″ to a rifle lower is also considered an SBR and will get you in trouble without the proper tax stamps in place.
Are polymer lower receivers bad?
Polymer is generally unsuitable for making an AR lower receiver. This is mostly because the area connecting to the buffer tube can’t be made strong enough, and it will break under regular use.
Are polymer lowers as good as aluminum?
It’s easier to make unique lowers from polymer and poly lower receivers are often much cheaper than aluminum receivers. They are quite light as well and are the most affordable lightweight material on the market.
Which is better polymer or aluminum?
Aluminum receivers are going to withstand wear and tear better than their polymer equivalents will. They have higher melting points, don’t warp or flex under pressure, and can be dropped without fear of cracks or chipping.
What is stronger aluminum or polymer?
Generally, steel is stronger than aluminum, which is stronger than polymer.
What are pistol lowers made of?
The popular AR-15 rifle series was one of the first so-called 80 Percent firearms. 80 percent lowers are typically sold anodized black, and made of T-6061 or T-7075 aluminum alloy.
What makes an AR-15 lower a pistol?
An AR-15 pistol is an AR-15 that has a barrel shorter than 16 inches, does not have a stock, and is shorter than 26 inches overall. The lack of a stock defines the AR pistol as a pistol. So even though it delivers rifle performance, it’s lack of a stock, it’s short barrel, and overall length makes it a pistol.
Can you put a rifle upper on a AR pistol lower?
Yes, and it doesn’t even matter if the lower with stock had been attached to a rifle upper. If you have an AR pistol with a barrel less than 16″, the only way you can legally have a stock on it is if you do the paperwork and get the stamp for an SBR.
What are polymer AR lowers made of?
It is nothing more than a polymer clone of a Mil-Spec forged aluminum AR lower. It is made from a “high-impact composite polymer” and the claim that it “bounces back to shape” when most lowers bend or break is not an exaggeration.
Are polymer lowers lighter?
Polymer parts will nearly always weigh less than their metal counterparts, receivers especially. The average polymer receiver weighs around one pound, while aluminum receivers weigh about twice that.
What is an AR-15 80 polymer lower?
Our 80 polymer lower for your AR-15 platform is engineered and manufactured by James Madison Tactical in the USA. This is not your average 80 lower receiver, in fact, our AR-15 lower receiver is fully engineered using current finite element structural analysis for reliable, long-term high performance. POLYMER 80 VS.
Are polymer AR lowers any good?
The biggest question people have with polymer AR lowers isn’t usually the fit of the product, it’s the durability. In the 1980s, Glock faced significant market resistance due to the perception that plastic guns could never work. Today, Glock is the most popular choice by police departments around the world.
Why choose James Madison tactical AR-15 lower receivers?
After much research in polymer 80 lower receivers, James Madison Tactical has created its own formula of hybrid polymers and fibers with additional reinforcements in high stress areas to bring you the best AR-15 lower receiver on the market today.
Who makes the lower for the AR-15?
ENGINEERED AND MANUFACTURED BY JAMES MADISON TACTICAL IN THE USA. Our 80 polymer lower for your AR-15 platform is engineered and manufactured by James Madison Tactical in the USA.