DDM4V7 Pro 18" 5.56mm NATO 1-7 15" MFR XS M-LOK Rail Upper
$1,659.00 at MidwayUSA · 9 stores
In stock
SR-15 KS-3 5.56 NATO 11.5" Bbl Assembled Upper Rcvr Black
Knights Armament · Upper Receiver
No ratings yetFits and works with
- Caliber
- 5.56 / .223 · Shop matching ammo
- Bolt
- Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
- Barrel length
- 11.5" · Handguards
Specifications
- Manufacturer
- Knights Armament
Compatibility
- Caliber
- 5.56 mm NATO
- Platform
- AR-15
Dimensions and weight
- Barrel length
- 11.5"
Materials and features
- Type
- Complete
- Color
- Black
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| AR15Discounts Best price 5% off | $1,710.00checked Nov 14, 2026 | Check store | Buy at AR15Discounts | |
| Dirty Bird | $1,710.00checked Nov 14, 2026 | Check store | Buy at Dirty Bird | |
| Brownells 17.76% off · ends Nov 15 · exclusions apply | $1,710.00checked Nov 14, 2026 | Out of stock | Buy at Brownells |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Price history
Dashed line = out of stock. Tracking since Sep 28, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| AR15Discounts | $1,710.00 | $1,710.00 | $1,710.00 |
| Brownells | $1,710.00 | $1,710.00 | $1,710.00 |
| Dirty Bird | $1,710.00 | $1,710.00 | $1,710.00 |
Since Sep 28, 2026.
About this part
The SR-15 KS-3 5.56 NATO 11.5" Bbl Assembled Upper Rcvr Black is an AR-15 complete upper receiver from Knights Armament. It's sold by 3 stores, all at $1,710.00.
From the manufacturer
KNIGHT'S ARMAMENT SR-15 KS-3 5.56 NATO ASSEMBLED UPPER RECEIVER The KS-3 features a standard profile 11.5" cold hammer forged barrel, with an optimal length for those that need a small rifle-caliber carbine. It is easy to stow for transport, unobtrusive to carry, and highly efficient in use. With nearly 100% compatibility with the other KS rifles, it is the recommended choice for a secondary upper receiver for those with KS-1 or KS-2 rifles, or as a primary system for those that require a dependable, small, light carbine. SPECS Barrel: 11.5", cold hammer forged, 1:7" twist, chrome lined Cartridge: 5.56 NATO Mfg: Knights Armament
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