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Radical Firearms AR15 7.5" 5.56MM Complete Upper Assembly


This can ship directly to you No FFL transfer Needed.

The Radical Firearms 7.5" M4 Upper Receiver is a flat top, law-enforcement grade, drop in receiver, ready to be mounted to any Mil-Spec AR-15 lower receiver! This fully mil-spec compliant receiver provides a high-quality upper for any level budget or shooter. Comes complete and assembled with Upper Receiver, Charging Handle, Bolt Carrier Group, Forward Assist, Ejection Port Door, Barrel Nut. 10.5" HBAR Barrel and A2 Flash Hider.

Radical Arms Uppers is fully Military-Spec and build entirely with US produced and assembled top quality parts. 

7.5" SOCOM 4150 Melonite treated Chromemoly Vanadium Steel Barrel (1/7) with a 1/2X28 thread pitch

BCG ran through HPT/MPI test (looks for metal imperfections and pressure endurance) 

Radicals bolt carrier group is Melonite treated and so are the barrels and gas blocks .

7075 Type III Hard Anodized Hybrid free float rail system keeps hands cool and still leaves plenty of space for mounting just about anything! 

DGI Stainless Carbine-length gas tube 

Keymod slots for attaching modular accessories, Machined in Anti-rotation QD sling mounts make this a top of the line pistol upper. 

Lifetime Radical Firearms Factory warranty. 

It is your responsibility to be familiar with your current local gun laws BEFORE placing your order. Please feel free to email us with questions you may have.


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Atlantic Firearms,llc
10337 Bunting Road
Bishopville, MD 21813
Office: (410) 352-5183
Voice: (410) 352-5183
Fax: (410) 352-3374