SR-25 M-LOK Upper Receiver Precision Rifle Kit 6.5 Creedmoor 22 Barrel
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SR-15 E3 M-LOK AR-15 Upper Receiver Lpr Mod 2 18" URX
Knights Armament · Upper Receiver
No ratings yetBest price
$2,172.99at Brownells
Out of stock checked Oct 23, 2026
In stock now instead
- SR-25 M-LOK Upper Receiver Precision Rifle Kit 6.5 Creedmoor 22… $4,299.99at Brownells
- Radian Weapons Model 1 AR-15 6mm ARC 18 inch M-LOK Upper Receiv… $2,169.95at Kentucky Gun Co
- Radian Weapons Model 1 AR-15 6mm ARC 18 inch M-LOK Upper Receiv… $2,169.95at Kentucky Gun Co
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells | $2,172.99checked Oct 23, 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.
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Price history
Dashed line = out of stock. Tracking since Sep 28, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Brownells | $2,172.99 | $2,172.99 | $2,172.99 |
Since Sep 28, 2026.
About this part
The SR-15 E3 M-LOK AR-15 Upper Receiver Lpr Mod 2 18" URX is an 18" AR-15 upper receiver from Knights Armament. One store lists it, Brownells at $2,172.99.
Fits and works with
- Barrel length
- 18" · Handguards
Specifications
- Manufacturer
- Knights Armament
- Platform
- AR-15
From the manufacturer
Knight's Armament Company, or KAC, is known to many for their top tier, military issued rifles and parts. Brownells is proud to offer this line of Knight's Armament SR-15 MOD 2 complete upper receivers that allow you to easily complete a build or upgrade a rifle with battle proven quality. Built around a chrome lined, cold hammer forged barrel in your choice of 11.5", 14.5" 16" & 18" lengths with a Mod 2 gas block, and fitted with a KAC 3 prong QDC suppressor compatible flash hider. The Knight's Armament SR-15 MOD 2 complete upper receivers feature the URX M-LOK handguards that each have 2 anti-rotation QD sling swivel sockets and ev Mfg: Knights Armament
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