Radical Firearms Radical Defense M4 5.56 NATO 10.5 in 30 Round Melonite Finish

The Radical Defense M4 Handgun by Radical Firearms is a rugged AR Pistol in the company's defense-oriented M4 lineup, chambered in 5.56 NATO with a 10.5" M4 profile 4140 Chrome Moly Vanadium barrel finished in Melonite for long service life and consistent accuracy, and a 30-round capacity for sustained range sessions or defensive drills. The MIL-STD 7075 T6 forged upper mated to a Type III anodized lower gives this pistol the durability expected from the model series, while the carbine-length gas system with a .750 low-profile gas block and A2 flash hider delivers reliable cyclic function with manageable recoil and controlled muzzle signature. The 10" RPR free-float rail combined with an M-Lok thin rail handguard provides solid support for optics, lights, and training accessories, and the Shockwave pistol brace adds a stable cheek weld and handling advantage that benefits tactical drills and precision work from unconventional positions. With features like a MIL-STD forward assist, dust cover, and attention to fit and finish throughout, this AR-15 platform pistol suits shooters seeking a defensive-minded, range-ready firearm that balances compact handling with controllable performance.