The Stroman Industries LLC machined AR15 billet lower receivers are the perfect foundation for your custom AR15 kit build. We start with a solid billet of 7075-T6 aluminum and then precisely machine all of the critical features and dimensions of the AR15 lower to ensure that every receiver is perfectly in spec. We then broach the magazine well for a perfect magazine fit, hand deburr, tumble and hard coat anodize. The result of our time and attention to detail is an AR15 billet receiver that will last you a lifetime and guarantee you a worry-free and quality build. These receivers accept all Mil-Spec components and look great with both a Sentinel Arms billet or forged upper receiver.  

• 7075-T6 Aluminum

• Get it in the white (raw) aluminum -or- Type III Class 2 Hard Coat Black Anodized

• Precision Broached Magazine Well

• Full M4 Cut Fire Control Group Pocket

• Right Side Bolt Release Lever Included

• Threaded Bolt Catch Pin Included

• Rear Takedown Detent Spring Retained with Set Screw Included

• Upper Receiver Tension Screw Included

• Marked Stroman Industries LLC

• Model Sentinel Arms

• 100% American Made

Stroman Industries machined AR15 billet upper receivers are the perfect complement to our billet lowers. Machined from a solid brick of 7075-T6 aluminum, hand deburred, and tumbled then shipped raw for you to add a finish. Accepts all Mil-Spec components and fits all Mil-Spec dimensions lower receivers. We ensure that every upper is well within spec and will function perfectly for your build.

• 7075-T6 Aluminum—NO FINISH  ***or*** Hard Coat Anodized

• Left Side Relief Allows for Most Aftermarket Battery Assist Devices

• 100% American Made

If you'd like to buy just the lower: price is $199.

If you'd like to buy just the upper: price is $120.