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NEW!! James Madison Tactical Gen 2 Polymer/Composite Lower

Posted on July 7th, 2014 by ar15news

James Madison Tactical has made a great name for themselves in the 80% Polymer/Composite AR Lower market by making what I would say is the best 80% Polymer / Composite lower out there. They went to great lengths to strengthen the necessary areas that have been failure points on other polymer lowers in the past but the material itself also makes a huge different. The guys at JMT have spent most of their career manufacturing amazing $1,000,000 kit Jet planes called the ViperJet that you can build at home. They then took their expertise in AERO Space polymers that are strong enough to be used in airplanes and used that same material to build a high quality, reinforced AR15 80% lower. The Gen 1 lowers were fantastic but now JMT has upped their game with the Gen 2 lower adding lots of enhancements.

Some of the enhancements are to further strengthen the design but a couple are cosmetic and they look awesome. One such upgrade is the webbing pattern on the magwell that is reminiscent of the PMAG design. The other is they removed the large “JMT” logo from the side of the magwell and replaced it with a much smaller logo on the Pivot Pin Spring Housing.  Oh yeah, the machining jig you need to complete the lower comes FREE with the purchase every lower and the price is just $99.95 each. Take a few minutes to read the official press release below and check out the pics of the new lower. Purchase links are at the bottom.


James Madison Tactical (JMT) introduces the superior Gen 2 polymer/composite fiber
lower receiver for the AR-15 platform.

James Madison Tactical, llc introduces our superior Gen 2 Polymer / Composite AR-15 lower receiver. JMT has made the best even better, known for their high quality and rugged 80% receiver. As we know JMT has incorporated new material technology and manufacturing processes for enhanced durability, strength and reliability but we have added a few more upgrades making it the best Polymer / Composite lower on the market today.

JMT Polymer Lower Gen2 1

GEN 2 Enhancements:

1. Extended box sections on upper fire control pocket.
2. Box section on upper top left of magazine well.
3. Extended bolt release pin posts.
4. Magazine webbed pattern.
5. New GEN 2 logo placement.

The JMT 80% lower also comes with a specially designed 3-piece machining jig with every order. This allows the user to machine the JMT 80% polymer/composite fiber lower receiver with ease and precision using simple tools.

The first thing users will notice is the JMT 80% lower receiver looks beefed up from the outside and rightly so. JMT has managed to add even more enhancements to the already strong making it even stronger. JMT also offers 3 popular colors (Black, FDE and ODG).

JMT Polymer Lower Gen2 3

You can purchase the new Gen 2 JMT 80% lowers directly from or from many of your usual favorite retailers such as, etc. 

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