Maxim Defense Industries · Personal-Defense-Weapon · In Production · 2025
| Weight (empty) | 3643 g (128.5 oz) |
| Overall Length | 863.6 mm (34.00") |
| Barrel Length | 215.9 mm (8.50") |
| Magazine Capacity | 30 rounds |
| Action Type | Gas Operated Direct Impingement |
| Firing Mechanism | Rotating Bolt |
| Muzzle Velocity | 625 m/s (2051 fps) |
| Muzzle Energy | 1585 J (1169 ft·lbf) |
| Effective Range | 200 m (219 yd) |
| Frame Material | Aluminum |
Primary Caliber: .300 AAC Blackout
The Maxim Defense SDX RFLX is an integrally suppressed .300 Blackout AR pistol using Maxim's RFLX over-the-barrel reflex suppressor, which wraps rearward over the 8.5-inch barrel to keep overall length compact at roughly 30 to 35 inches depending on brace. The 10.1-inch suppressor reports 129 dB on subsonic and 134 dB on supersonic loads, and the gun ships with an ALG Combat trigger and a choice of Maxim's Gen 6 CQB brace or an SBA5 brace. Offered in Arid or Black finishes and built to order.
Country of Origin: United States