Knight’s Armament Co SR-15 KS-4 Mod 2 5.56 NATO 30rd
1 in stock
Description
The Knight's Armament Co SR-15 KS-4 Mod 2 is a semi-automatic 5.56 NATO rifle built on KAC's refined AR-15 pattern, combining a 16-inch cold hammer forged barrel with the company's proprietary mid-length gas system. The KS-4 designation marks the current evolution of the SR-15 Mod 2 line, pairing a fully ambidextrous lower with the slim URX 6 M-LOK handguard. It suits shooters who want a duty-grade carbine with match-oriented internals rather than a parts-bin build.
Knight's E3.2 bolt carrier group sits at the center of the design, using round-lug bolt geometry, a lobster-tail extractor, and dual ejectors to spread stress and improve reliability over extended round counts. The factory two-stage trigger and KAC Micro flip-up sights round out a rifle that is ready to run as issued or serve as a base for an optic and suppressor setup.
Knight's Armament Co SR-15 KS-4 Mod 2 Features
- 16-inch cold hammer forged, chrome-lined barrel with 1:7 twist for barrel life and consistent stabilization of heavier 5.56 loads
- E3.2 bolt carrier group with round-lug bolt, lobster-tail extractor, and dual ejectors, reducing wear points and improving extraction consistency
- KAC proprietary mid-length gas system that softens the impulse compared to a carbine-length port
- 15-inch URX 6 M-LOK free-float handguard giving a slim grip surface and a long run of rail space for lights, lasers, and hand stops
- Fully ambidextrous bolt release, magazine release, and selector, so left-handed shooters and support-side work need no added hardware
- KAC 3-Prong Flash Eliminator that doubles as a mounting interface for QDC suppressors
Specifications
- Condition: New
- Manufacturer: Knight's Armament Company
- Model: SR-15 KS-4 Mod 2
- Operating System: Semi-automatic, gas operated, KAC mid-length gas system
- Barrel Type: Cold hammer forged, chrome lined, 1:7 twist
- Safety System: Ambidextrous selector
- Sight Type: KAC Micro flip-up front and rear sights
- Finish Type: Black
- Included Accessories: One 30-round magazine
- Additional Notable Specs: E3.2 bolt carrier group, 15-inch URX 6 M-LOK free-float handguard, factory two-stage trigger, KAC 3-Prong Flash Eliminator with QDC suppressor compatibility, adjustable stock, approximately 6.62 lbs
Specifications
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