Knights Armament SR-15 KS-1 5.56 NATO 13.7" M-LOK Black 121439 – Premium Professional Grade Carbine
The Knights Armament SR-15 KS-1 5.56 NATO (Part # 121439) is a high-performance, professional-grade carbine built to the exacting standards that Knights Armament is renowned for. Featuring a 13.7-inch barrel and a modern M-LOK handguard, the KS-1 represents the latest evolution of the legendary SR-15 platform. This rifle is designed for military, law enforcement, and serious civilian shooters who demand exceptional reliability, accuracy, and durability in a compact package. The inclusion of one 30-round magazine makes it ready for immediate use right out of the box.
Whether used for duty, competition, or high-level training, the SR-15 KS-1 delivers the precision engineering and combat-proven performance that has made Knights Armament a trusted name among professionals worldwide.
Key Features of the Knights Armament SR-15 KS-1 5.56 NATO
13.7" Barrel
Optimized barrel length provides an excellent balance of velocity, maneuverability, and reduced overall length while maintaining effective terminal performance.
M-LOK Handguard
Modern M-LOK rail system allows for lightweight and secure mounting of accessories while maintaining a slim, comfortable profile.
Professional Grade Build
Built with Knights Armament’s signature attention to detail, including enhanced bolt carrier group and precision components for maximum reliability.
Why Choose the Knights Armament SR-15 KS-1 5.56 NATO 121439?
When searching for a premium 5.56 NATO carbine built to professional standards, the Knights Armament SR-15 KS-1 13.7" M-LOK Black 121439 stands in a class of its own. Knights Armament has long been recognized as one of the premier manufacturers of high-end AR-15 platforms, with their rifles serving elite military and law enforcement units around the world. The KS-1 model incorporates modern improvements while retaining the core reliability and accuracy that the SR-15 series is famous for. The 13.7-inch barrel offers an ideal compromise between the maneuverability of shorter barrels and the velocity of longer ones, making it highly effective for both close-quarters and mid-range engagements. The M-LOK handguard provides a lightweight yet rigid platform for mounting optics, lights, and other accessories without adding unnecessary bulk. Knights Armament’s enhanced bolt carrier group and precision machining ensure smooth operation and exceptional durability even under extreme conditions. This rifle is supplied with one 30-round magazine, allowing users to begin training or duty use immediately. The all-black finish provides a professional, low-visibility appearance suitable for both tactical and civilian applications. For those who refuse to compromise on quality, the SR-15 KS-1 delivers unmatched performance, reliability, and craftsmanship in a compact, modern package.
- Premium Knights Armament SR-15 KS-1 platform
- 13.7-inch barrel for optimal balance of velocity and handling
- Modern M-LOK handguard for accessory mounting
- Enhanced bolt carrier group for superior reliability
- Includes one 30-round magazine
- Professional-grade construction and finish
- Ideal for duty, competition, and serious training
- Part Number: 121439
Technical Specifications – Knights Armament SR-15 KS-1
| Specification | Details |
|---|
| Manufacturer | Knights Armament |
| Model | SR-15 KS-1 |
| Part Number | 121439 |
| Caliber | 5.56 NATO |
| Barrel Length | 13.7 Inches |
| Handguard | M-LOK |
| Magazine | 1 x 30-Round Magazine |
| Finish | Black |
| Action | Semi-Automatic |
| Application | Duty, Tactical, Competition, Training |
| Features | Enhanced BCG, M-LOK Rail, Professional Grade |
Shop the Knights Armament SR-15 KS-1 5.56 NATO 13.7" M-LOK (121439) today and experience professional-grade performance.
The Knights Armament SR-15 KS-1 5.56 NATO 13.7" M-LOK Black 121439 is a premium professional-grade carbine featuring a 13.7-inch barrel, modern M-LOK handguard, and enhanced components. Built to the highest standards by Knights Armament, this rifle delivers exceptional reliability, accuracy, and durability. Supplied with one 30-round magazine, the SR-15 KS-1 is ready for duty, competition, or serious training right out of the box.
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