San Tan Tactical · Rifle · In Production · 2022
| Weight (empty) | 3000 g (105.8 oz) |
| Overall Length | 940 mm (37.01") |
| Barrel Length | 457 mm (17.99") |
| Magazine Capacity | 25 rounds |
| Action Type | Gas Operated Direct Impingement |
| Firing Mechanism | Hammer Fired |
| Muzzle Velocity | 808 m/s (2651 fps) |
| Muzzle Energy | 2220 J (1637 ft·lbf) |
| Effective Range | 700 m (766 yd) |
| Frame Material | Aluminum Alloy |
Primary Caliber: 6mm ARC
The San Tan Tactical STT-15 6 ARC is a premium precision AR-15 semi-automatic rifle chambered in 6mm ARC, built on the company's fully ambidextrous pillar billet receiver set machined from 7075-T6 certified aerospace aluminum. It is fitted with an 18-inch Proof Research carbon-fiber barrel with a 1:7.5 twist, run on a rifle-plus gas system for a smooth, tunable impulse with the long-range 6mm ARC cartridge. The rifle uses San Tan Tactical's in-house Wedgelock 16-inch M-LOK handguard, a CMC Trigg...
Country of Origin: United States