Smith & Wesson M&P15 AXE SBR
Smith & Wesson, Inc. · Carbine · In Production · 2026
Also known as: M&P15 AXE
Overview
The Smith & Wesson M&P15 AXE SBR is a suppressor-optimised short-barrelled rifle chambered in .300 AAC Blackout, announced in July 2026. Its 8-inch, 5R-rifled barrel with 1:7.5 twist and 5/8x24 threads is matched to a Gemtech GVAC upper that vents gas away from the shooter when suppressed. It weighs about 5.65 pounds with a Magpul CTR stock, Williams folding sights and an M-LOK handguard.
Specifications
| Weight (empty) | 2563 g (90.4 oz) |
| Barrel Length | 203 mm (7.99") |
| Action Type | Gas Operated Direct Impingement |
| Firing Mechanism | Rotating Bolt |
| Trigger Type | Single Stage |
| Magazine Capacity | 30 rounds |
| Magazine Type | Detachable Box |
| Muzzle Velocity | 570 m/s (1870 fps) |
| Effective Range | 200 m (219 yd) |
| Barrel Rifling | Right Hand |
| Rifling Twist | 191 mm (7.52") |
| Frame Material | Aluminum |
| Barrel Material | Steel |
| Stock Material | Polymer |
| Finish | Armornite |
Calibers
- .300 AAC Blackout · primary — also known as 300 BLK, .300 Blackout, 7.62x35mm
Features
- Firing modes: Semi Automatic
- Feed systems: Detachable Box Magazine
- Safety mechanisms: Safety Selector
- Features: Suppressor Optimized, Gemtech Gvac Upper, 5r Rifling, Magpul Ctr Stock, Williams Folding Sights, M Lok Handguard, Threaded Muzzle
Variants
Production
Production years: 2026-present
Origin
Country of origin: United States
Notes
MSRP approximately $1,499. Released alongside a braced pistol version. The .300 BLK AXE joined a 5.56 NATO AXE line already offered in 11.5-inch and 14.5-inch SBR configurations.
Background
The .300 Blackout was designed from the start to run subsonic and suppressed from a short barrel - the AXE SBR is close to the configuration the cartridge was actually invented for.