---
title: "Knights Armament KS-3 11.5\" 5.56 Carbine"
description: "Compact 5.56x45mm NATO rifle system with an 11.5\" cold hammer forged barrel, chrome-lined bore, M-LOK interface, flip-up sights, and adjustable stock."
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---

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KNG-121441

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# KNIGHTS ARMAMENT SR-15 KS-3 5.56mm 11.5" 30rd SBR - Black

The Knights Armament KS-3 is a compact 5.56x45mm NATO rifle system with an 11.5" cold hammer forged, chrome-lined barrel. It features a lightweight design, adjustable polymer stock, flip-up front and rear sights, M-LOK interface, flash hider, and a detachable 30-round magazine.

$3,347

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Item #

314294

Style

KNG-121441

UPC

819064019176

Condition

New

Manufacturer

[Knights Armament](https://www.kygunco.com/brand/knights-armament)

Model

SR-15

Caliber

5.56 NATO, 223 Rem

Action

Semi-Auto

Barrel Length

11.5 in

The Knights Armament KS-3 is a compact 5.56 NATO carbine engineered for users who need a highly maneuverable rifle platform. Its short overall footprint makes it easy to transport and deploy in confined environments while maintaining the durability and reliability expected from the KS series. The KS-3 is also an excellent companion upper for existing KS-1 or KS-2 owners seeking a smaller, lighter configuration.

FEATURES

- Optimized for close-quarters and vehicle operations
- Compact design for easy storage and transport
- Durable cold hammer forged barrel construction
- Corrosion-resistant chrome-lined bore and chamber
- Lightweight platform for improved handling
- Adjustable stock for a customizable fit
- Equipped with flip-up front and rear backup sights
- M-LOK attachment interface for accessories
- Flash hider reduces visible muzzle flash
- Extensive parts compatibility within the KS rifle family

SPECIFICATIONS

- Caliber: 5.56x45mm NATO
- Barrel Length: 11.5"
- Barrel Material: 32CrMoV12-10 Steel
- Barrel Profile: Light
- Twist Rate: 1:7"
- Weight: 6.1 lbs
- Overall Length: 28"–31.3"
- Finish: Matte
- Color: Black
- Stock Style: Adjustable
- Stock Material: Polymer
- Magazine Capacity: 30 Rounds
- Magazine Included: 1
- Magazine Type: Detachable
- Front Sight Type: Flip-Up
- Rear Sight Type: Flip-Up
- Mounting Interface: M-LOK
- Muzzle Device: Flash Hider

**

WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to [www.p65warnings.ca.gov](https://www.p65warnings.ca.gov).

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