Knights Armament Company SR-30 IWS Complete Lower Receiver .300 Black
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Knights Armament
Overview
The Knights Armament Company SR-30 IWS Complete Lower Receiver .300 Black is a lower receiver. Compare prices from multiple merchants and find the best deal.
Specifications
Knights Armament Company SR-30 IWS Complete Lower Receiver .300 Black
Available Merchants(3)
Prices checked
Stock Alert
October 2026 on GunPartPicker
Knights Armament Company SR-30 IWS Complete Lower Receiver .300 Black ranked #208 of the 588 lower receivers builders added on GunPartPicker in October 2026. Builders have added it to their builds on GunPartPicker. Since April 2026, it ranks #117 of the 1,222 lower receivers builders have added. Builds with this lower receiver are mostly chambered in 300 Blackout (94%), mostly on pistol-length gas (73%, then carbine-length 20%), and nearly all AR-15.
Today none of the 3 retailers we track has it in stock right now. Listed prices start at $1,007.28 at BattleHawk Armory for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Frequently Built With
The part most often added in each category by the builds that include this one
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Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
Builds Featuring This Part
See all builds →Builds in the community that include the Knights Armament Company SR-30 IWS Complete Lower Receiver .300 BLK
| Build | Parts | Total |
|---|---|---|
 | 14 | $9406.51 |
 | 9 | $3872.80 |
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