The FN 15 M16 Stripped Lower Receiver is a forged 7075-T6 aluminum AR-15 lower chambered for 5.56x45mm, finished in black and modeled after FN’s production of U.S. military-issued carbines (FN America part no. 20-100822). Machined and broached to precise mil-spec standards before anodizing, each receiver carries the same markings found on FN’s U.S. military production M4 and M16 receivers, making it the closest semi-auto reproduction available of the original DoD contract carbines. The fire control housing is modified to block select-fire operation, giving builders an authentic-looking foundation for a semi-automatic M4 or M16-style build.
Key Specifications
- The receiver is forged from 7075-T6 aluminum for military-grade strength.
- It’s chambered for .223 Rem/5.56 NATO AR-15 upper receivers.
- The receiver is machined and broached to mil-spec standards before anodizing.
- It carries authentic FN U.S. Military production markings from FN’s M4 and M16 contracts.
- The receiver is sold in Stripped configuration for builders to select their own internals.
- A Semi-Auto fire control housing is modified to block select-fire operation.
- The receiver carries the M4 roll mark, matching FN’s official U.S. military production markings.
- At 0.7 pounds shipping weight, it’s inexpensive and easy to ship.
- It’s built for M4 and M16-pattern builds in 5.56 NATO/.223 Remington.
Frequently Asked Questions
Is this a real select-fire M16 lower? No, the fire control housing is modified to block select-fire operation; it’s a semi-automatic-only reproduction.
What material is the receiver made from? It’s forged from 7075-T6 aluminum and machined to mil-spec dimensions.
Buy the FN 15 M16 Stripped Lower Receiver
Build an authentic reproduction of an FN America / FN Herstal military-contract carbine. Shop more AR15 lowers and order this FN 15 lower from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.
