Vertx Ruck: Lightweight Mobility for Unrestricted EDC
When it comes to choosing the implements that make up your everyday carry,…
When it comes to choosing the implements that make up your everyday carry,…
The wait is finally over—UN12 Issue 25 is now on sale and on newsstands…
Toor Knives has announced the Barrow—a new ultralight fixed blade designed to deliver…
Magpul introduced its DAKA Grid Organizer system in 2023, but I hadn’t really become aware…
Setup & Shooting Instructions This drill is executed with a carbine at 50 yards. The…
All shooting is a balance between speed and precision. By that I mean you can…
The 80% polymer AR-15 lower receiver has had its share of controversy. The ATF raided a gunshop over how the gunshop manufactured its polymer lowers in March of 2014. The ATF then issued a 14 point clarification in October of 2014 that clarified matters…
Guns & Tactics published an article discussing the controversy.
James Madison Tactical (JMT) didn’t wait for the ATF to determine what was and what wasn’t a “firearm.” JMT sought out and received a determination letter that stated that the JMT lower receiver was not classified as a firearm.
James Madison Tactical, LLC receives determination letter from the ATF/FTB
"As of August 25, 2014 James Madison Tactical, LLC just received it’s determination letter from the ATF/FTB stating that our JMT 80 lower receiver is not classified as a firearm as defined in 18 U.S.C. 921(a)(3). The examination states that manufacturing operations have not been performed in the fire control section of the receiver blank and that the casting has not reached a point in the manufacturing process to be classified as a firearm."
Scott Hanchette
James Madison Tactical, llc
The JMT 80% polymer AR-15 lower receiver is in it’s 2nd generation. Improvements to the lower include a pre-threaded brass insert in the handgrip attachment area for strength and reliability, magwell striped reinforcements to match Magpul PMAG magazines, and the logo has been moved to the upper reinforcement on the magwell.


The JMT 80% polymer lower comes with it’s own jig to simplify the finishing process. A drill press is required, but not a degree in machining.

Retail price for the 80% lower is $99.95 in Black, Flat Dark Earth, or Olive Drab Green from their website.



* The views and opinions expressed on this web site are solely those of the original authors and contributors. These views and opinions do not necessarily represent those of Guns & Tactics Magazine,
the administrative staff, and/or any/all contributors to this site.
Jerry has been a criminal justice professional for nearly two decades. He is a US Navy Veteran, self-proclaimed Second Amendment scholar, gun rights advocate, and NRA Life Member.
The Mag Life, the official online publication of GunMag Warehouse, is proud to announce the latest member of its staff: Peter Suciu.
Check out this deal at Rainer Arms on PMC Ammunition X-Tac 5.56 62gr. If you are in the market for quality ammunition go quickly.
You can always use more magazines for a little pew pew time at the range. So jump on this fantastic PMAG deal that is back at Palmetto State Armory.
Jonathan takes a look at the Sig Sauer P320-M17 and ROMEO1PRO red dot. See what he thinks of this combination.
TruEarz’s specially-designed acoustic filters reduce sounds evenly across a wide frequency range including impulse.
Heckler & Koch will have new products available at the SHOT Show Media Day at the Range Monday, January 14, 2013 Taking an essentially standard MR762A1 (caliber 7.62…
© 2026 UN12 Magazine
© 2026 UN12 Magazine
Wait! Don’t forget to
Notifications