Radical Firearms Complete AR-15 Lower Receiver

Manufactured by Radical Firearms
SKU: FL-M4
MPN: FL-M4
Manufactured by Radical Firearms
5 Reviews
$129.99 $149.99

In Stock

Orders of non-FFL items will ship same day if ordered before 3:30pm CST (M-F). FFL orders will ship within 5 business days if transfer details are provided.

For individual Officer, First Responder, and Military pricing please make sure you are logged in. for details

Items that are regulated by the ATF have restrictions and requirements: 
•Your entire order will ship only to a Federal-Firearm License holder.
•Please contact your local FFL prior to placing your order to ensure they are still accepting transfers.
•A copy of your order/invoice as well as the current FFL license for your local dealer must be emailed to ffl@primaryarms.com.

Details

Details

The Radical Firearms Complete AR-15 Lower Receiver is an easy way to get started on your next build. The lower is built to Mil-Spec out of forged 7075-T6 aluminum and hardcoat anodized black. It comes with all Mil-Spec components installed and features an A2 pistol grip and M4 collapsible carbine stock. Get started building your next AR-15 carbine today with this complete lower receiver.

Features:
  • Forged 7075-T6 aluminum
  • Hardcoat anodized black
  • Mil-Spec dimensions
  • A2 pistol grip
  • M4 collapsible carbine stock
  • Carbine buffer


Radical Firearms offers law enforcement grade hardware. Crafted with quality materials and covered by their lifetime warranty, Radical Firearms is an outstanding choice for any budget.
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Specifications

AmbidextrousNon-Ambi
BrandRadical Firearms
Caliber MarkingMulti-Caliber
ColorBlack
FinishHardcoat Anodized
Receiver Material7075-T6 Aluminum
Trigger Pin DiameterMIL-SPEC .154
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.

Ratings & Reviews

5 reviews

3.8

perfect...if you like out of spec lowers

by -

will not pin onto any of the LITERALLY 13 uppers I tried it on. Takedown pin hole is either of spec too low, or low and back.

Perfect lowers

by

I purchased two complete lowers and both are perfect takedown holes are a little tight but fit and finish are great I am extremely happy with everything and will be purchasing many more in the future.

Great price for a complete lower

by -

Good quality lower with no issues. Will change the trigger, grip, and stock out and it would still be more affordable than other manufacturers.

Excellent lower receiver.

by -

Excellent lower receiver. I paired it with a Radical Firearms upper. My wife and I have put around 200 rounds through it the gun with no issues. For fun I tossed on a Colt upper and BRN-180 upper and they fit without any issues.

NOT mil spec lower

by -

The lower appears well made, however it is not mil spec! There is extra metal on the right side of the receiver to accommodate their ambidextrous selector switch. This will not allow for a drop in enhanced trigger.