The Knight’s Armament SR-15 KS-3 Upper Receiver Kit is a factory-configured upper receiver designed for AR-15 platform rifles chambered in 5.56 NATO. It features an 11.5-inch cold hammer forged barrel with a 1:7 twist rate and chrome-lined bore, offering durability and consistent performance in a compact configuration. The upper is paired with an M-LOK compatible handguard, allowing for flexible accessory mounting while maintaining a streamlined profile.
This upper receiver kit includes a complete bolt carrier group with the E3.2 bolt, charging handle, and a compatible muzzle device. Additional components include front and rear micro iron sights, an M-LOK to Picatinny rail section, an M-LOK QD sling adapter, and an H2 buffer. The included components provide a comprehensive upper assembly suitable for users seeking a complete and ready-to-install solution.
Specifications
- Caliber: 5.56 NATO
- Barrel Length: 11.5 in
- Barrel Type: Cold hammer forged, chrome lined
- Twist Rate: 1:7
- Handguard: M-LOK compatible
- Bolt Carrier Group: Included with E3.2 bolt
- Charging Handle: Included
- Muzzle Device: Included
- Sights: Front and rear 600m micro iron sights included
- Accessories Included:
- M-LOK to Picatinny rail section
- M-LOK QD sling adapter
- H2 buffer
