.308 80% Lower – Billet

$129.00

.308 80% Lower – Billet — 230+ sold. In stock at Polymer80Guide.

This .308 80% lower receiver is a billet-machined platform for builders seeking a durable foundation for a large-frame AR-10 pattern rifle. It’s designed for experienced hobbyists who value precision and reliability in their builds. Since we added it to our lineup in spring 2025, it has consistently ranked among our top-selling 80% receivers, with over 230 units sold to date.

Key Highlights

  • Machined from 7075-T6 billet aluminum for superior strength and dimensional stability.
  • Features a flared magwell for faster, more reliable magazine insertion.
  • Maintains compatibility with standard DPMS-pattern .308/7.62x51mm parts kits.
  • Includes a threaded bolt catch pin hole for easier assembly.
  • Our staff notes zero warranty claims filed on this product in over a year of sales.

Product Details

Material 7075-T6 Aluminum Billet
Caliber .308 Winchester / 7.62x51mm NATO
Pattern DPMS (Large Frame)
Finish Raw, Unanodized
Fire Control Pocket 80% Complete
Weight (measured) 4.6 oz
Includes Receiver, Jig Screws

What Buyers Ask

What jig is required to finish this lower?

This lower is designed for use with a standard, multi-use .308/AR-10 80% lower jig. It is not compatible with jigs made for AR-15 platforms. Ensure your jig is specified for DPMS-pattern large-frame receivers.

Does this work with both .308 and 6.5 Creedmoor uppers?

Yes. This DPMS-pattern lower is compatible with uppers chambered in .308 Winchester, 7.62x51mm NATO, 6.5 Creedmoor, and other cartridges that share the .308 parent case dimensions, provided you use the correct magazine.

Is the rear takedown pin hole threaded?

No. This receiver uses a standard, non-threaded rear takedown pin hole. The included threaded screws are for securing the receiver to a compatible machining jig during the finishing process.

Currently in stock at our Wichita Falls warehouse
Ships same business day before 3 PM
No logos or product names on package
Full refund within 30 days
Secure payment processing

Reviews

There are no reviews yet.

Be the first to review “.308 80% Lower – Billet”

Your email address will not be published. Required fields are marked *

Lowers · Kits · Pistols · Frames · Shop
Scroll to Top
Pinecrest Arms • 6769 Pioneer Pl, Wichita Falls, TX 76347 • (940) 623-2330 • Mon-Fri 8:30AM-5:30PM