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)
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August 2026 on GunPartPicker
Knights Armament Company SR-30 IWS Complete Lower Receiver .300 Black ranked #80 of the 507 lower receivers builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #78 of the 1,002 lower receivers builders have added. Builds with this lower receiver are nearly all chambered in 300 Blackout, split between mid-length (50%) and pistol-length (50%) gas systems, and nearly all AR-15.
It was out of stock everywhere we track for all of August 2026, and 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 35 retailers
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Frequently Built With
The part most often added in each category by the 45 builds that include this one
Patriot Ordnance Factory Renegade Plus 10.5" Complete Upper .300 AAC Blackout 1:7, Black - 1446
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FAXON Firearms 5.56 M16 Bolt Carrier Group Nitride TIN PVD
Aero Precision AR-15 Breach Charging Handle Ambidextrous Small Levers
ODIN Works Zulu Adjustable Stock KIT w/ Padded Pistol Buffer Tube & End Plate, Flat Dark Earth
Magpul AFG-2 Angled Fore Grip - Black
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
Builds Featuring This Part
See all 2 →Builds in the community that include the Knights Armament Company SR-30 IWS Complete Lower Receiver .300 BLK
| Build | Parts | Total |
|---|---|---|
 | 14 | $12845.16 |
 | 9 | $3973.31 |
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