• Constantly delivering the ultimate, James Madison Tactical introduces the new 308 80% Lower Receiver with Jig Kit
  • The lower receiver has a rugged composite/polymer construction with extended bolt release roll pin posts

308 Black 80% Lower Receiver With Jig Kit - Composite/Polymer Construction, Webbed Magazine Wells

$99.99

In Stock - Ships Today!

Fast and Accurate Order Processing

We offer standard, 3 day express, 2 day express, and overnight express shipping options for your convenience. If you place your order Monday - Friday by 2:00 PM EST using one of our express shipping options, your order will be processed and shipped the same day it is placed!

Applies to delivery within the 48 contiguous states only.
Shopper Award

  • Constantly delivering the ultimate, James Madison Tactical introduces the new 308 80% Lower Receiver with Jig Kit
  • The lower receiver has a rugged composite/polymer construction with extended bolt release roll pin posts
  • It has extended upper fire control box sections and an upper left magazine well box section
  • It also features webbed magazine wells on both the left and right sides, matched for MagPul magazines
  • Click here for instructions

This Item Cannot Ship to the Following States: CA, PA, NY, CT, WA, NJ


The James Madison Tactical (JMT) is constantly evolving with products to deliver the ultimate lowers in the industry. The .308 80% Lower Receiver with Jig Kit for your .308 platform is engineered and manufactured by James Madison Tactical in the USA. This is not your average polymer 80 lower, in fact, it is fully engineered using current finite element structural analysis for reliable, long-term high performance. After much research in polymer .308 lowers, JMT created its own formula of hybrid polymers and fibers with additional reinforcements in high stress areas to bring you the best .308 lower on the market today. All of the JMT polymer 80 lowers are engineered to Mil-Spec tolerances and because it is fashioned from extremely durable fiber polymer materials, there are no concerns about corrosion, that you may find in aluminum .308 lowers. The .308 80% Lower Receiver is designed, specifically, for a high level of interchangeability with other Mil-Spec .308 parts and accessories on the market today. This is achieved through current technology and computer aided manufacturing processes combined with exacting quality control procedures. The operations left to be completed to complete your JMT .308 80% lower are as follows: fire control group, trigger pin, hammer pin, trigger slot and the safety selector hole. This is a not an FFL item. This is not a complete receiver and still requires machining to be done.

52 JM0037


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