Knight's Armament M110K5
Knight's Armament Company · Sniper Rifle · In Production · 2020
Also known as: SR-25 K5, KAC M110K5, Knight's M110K5
Overview
The Knight's Armament M110K5 is a suppressor-optimized 7.62mm NATO semi-automatic carbine representing the latest evolution of the legendary M110/SR-25 platform. Designed to significantly reduce the length and weight normally associated with suppressed 7.62mm platforms, the M110K5 features a 14.5-inch cold hammer-forged, chrome-lined barrel made from 32CrMoV12-10 steel with a hybrid light profile. The rifle is purpose-built to cover the full spectrum of precision engagement from close quarters to 800 meters, whether suppressed or unsuppressed. The high-pressure dual ejector bolt is specifically engineered to enhance performance in both firing conditions while extending the rifle's service life. The M110K5 is compatible with KAC's Quick Detach Coupling (QDC) 7.62mm signature reduction devices as well as direct-thread semi-permanent suppressor options, and uses M-LOK handguard attachment for a streamlined accessory interface.
Specifications
| Weight (empty) | 3860 g (136.2 oz) |
| Weight (loaded) | 4500 g (158.7 oz) |
| Overall Length | 889 mm (35.00") |
| Barrel Length | 368 mm (14.49") |
| Action Type | Gas Operated Direct Impingement |
| Firing Mechanism | Rotating Bolt |
| Trigger Type | Two Stage |
| Magazine Capacity | 20 rounds |
| Magazine Type | Detachable Box |
| Muzzle Velocity | 715 m/s (2346 fps) |
| Muzzle Energy | 2900 J (2139 ft·lbf) |
| Effective Range | 800 m (875 yd) |
| Maximum Range | 3700 m (4046 yd) |
| Barrel Rifling | Right Hand |
| Rifling Twist | 254 mm (10.00") |
| Frame Material | Aluminum Alloy |
| Barrel Material | Cold Hammer Forged Chrome Lined Steel |
| Stock Material | Polymer |
| Finish | Matte Black |
Calibers
- 7.62x51mm NATO · primary · 7.62x51mm NATO — also known as .308 Winchester, 7.62mm NATO, 7.62x51mm
Features
- Firing modes: Semi Automatic
- Feed systems: Detachable Box Magazine
- Safety mechanisms: Ambidextrous Safety, Firing Pin Safety
- Features: Free Floating Barrel, Cold Hammer Forged Barrel, Chrome Lined Barrel, Suppressor Optimized, Dual Ejector Bolt, M-Lok Handguard, Collapsible Precision Stock, Ambidextrous Controls, Qdc Suppressor Mount, Direct Thread Suppressor Option
Variants
- M110K1 — 6-5 Creedmoor Conversion
Base model
Service history
Operators
- US Special Operations Command · as M110K5
Production
Production years: 2020-present
Limited production for military and high-end civilian market. Exact numbers not disclosed.
Origin
Country of origin: United States
Designer: C. Reed Knight Jr.
Notes
The M110K5 represents KAC's response to the modern military requirement for compact, suppressed precision rifles that can operate in both CQB and designated marksman roles. The commercial variant is designated the SR-25 K5. The M110K1 variant, ordered by NSWC Crane for USSOCOM in 2019, converts existing M110s to 6.5mm Creedmoor with 14.5-inch and 22-inch barreled configurations. The 32CrMoV12-10 barrel steel is a European specification alloy chosen for superior heat resistance and barrel life compared to standard 4150 chrome-moly steel. The B5 Systems collapsible precision buttstock provides a compact package without sacrificing cheek weld consistency.
Background
The M110K5 continues the legacy of the SR-25 platform that Eugene Stoner designed in the early 1990s, but optimized for the reality that modern special operations forces fight suppressed as a default, not an exception. Where the original M110 SASS was a 20-inch barreled precision rifle with a suppressor added as an accessory, the K5 was designed from the ground up around the suppressor as an integral part of the weapon system.