Knights Armament SR-15 IWS Ambidextrous Complete Lower Receiver, Mod 1 Era, 5.56 NATO, Black
This KAC factory SR-15 IWS complete lower is a late 2010s Mod 1 take-off distinguished by its integrated sling interfaces and ambidextrous controls. It features the Titusville, FL roll marks with the Stoner Rifle crest and was produced in this configuration for only a few years, a variant that has become sought after by collectors. It is a complete lower assembly only, ready for a compatible upper.
Condition
Overall Condition: Excellent.
Bore Condition: Not applicable; this listing is for a complete lower receiver only with no barrel or upper.
Specific Condition Notes: There are light signs of wear and handling, with some surface scratches visible on the finish.
What’s Included
- Knights Armament SR-15 IWS factory complete ambidextrous lower receiver assembly
- Collapsible polymer stock
- A2-type polymer pistol grip with checkering
- Carbine receiver extension with staked castle nut
Built by Knights Armament in Titusville, Florida, this SR-15 IWS lower carries the Stoner Rifle crest and correct roll marks. It is a factory complete lower taken off a late 2010s Mod 1 rifle, preserving the period-correct configuration.
Ambidextrous controls are integral to this design, including the ambidextrous magazine release and safety selector. The receiver is forged from 7075-T6 aluminum and finished in Type III hardcoat anodized black for durability and a clean, uniform appearance.
A hallmark of this specific variant is its sling interface. In addition to integrated dual, steel-lined QD sling sockets on both sides, it has the built-in QD cup positioned behind the rear takedown pin. Knights Armament produced this feature set for only a few years, and collectors covet these lowers for that detail.
The lower is configured with a carbine receiver extension and a properly staked castle nut, a collapsible polymer stock, and an A2-type polymer pistol grip with checkering. It is offered as a complete lower only (no upper/barrel), ready to pair with your compatible upper receiver.