Knight's Armament Co SR-15, 5.56mm, Stripped Lower Receiver ***BLEMISHED***
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Knights Armament
Overview
The Knight's Armament Co SR-15 stripped lower receiver is designed for the AR-15 platform and is chambered for the 5.56 NATO caliber. This stripped receiver provides the essential foundation for your build, allowing you to customize with your choice of parts and configurations. Its common use in carbine gas systems makes it a versatile choice for builders looking to create a reliable and effective firearm.
Specifications
Knight's Armament Co SR-15, 5.56mm, Stripped Lower Receiver ***BLEMISHED***
September 2026 on GunPartPicker
Knights Armament Knight's Armament Co SR-15, 5.56mm, Stripped Lower Receiver ***BLEMISHED*** ranked #25 of the 477 lower receivers builders added on GunPartPicker in September 2026, behind the Diamondback DB15 AR Lower, Black - DB2210R001, with about 1 in every 167 lower receivers added to builds. Up from #34 in August. Builds with this lower receiver are nearly all chambered in 5.56 NATO, split between carbine-length (50%) and mid-length (25%) gas systems, and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every day in September 2026, and today both retailers we track have it in stock. It dipped to $650 at BattleHawk Armory for a stretch in September 2026, well under its usual $749, so sales do come around. Buying today, the lowest price is $650 at BattleHawk Armory, which matches the best price we saw in September.
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 82 builds that include this one
Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger
Daniel Defense 14.5" 5.56 M4A1 AR-15 Complete Upper - Flat Dark Earth
Magpul MOE K2+ Grip Polymer Flat Dark Earth
Phase 5 Tactical AR-15 90 Degree Ambi Safety Selector Black
Radian Raptor Charging Handle & Talon Safety Selector Combo - OD Green
Strike Industries Ambidextrous Magazine Release, Black - ARAMBIMRBK
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 1 →Builds in the community that include the Knight's Armament Co SR-15, 5.56mm, Stripped Lower Receiver ***BLEMISHED***
| Build | Parts | Total |
|---|---|---|
 | 19 | $3427.94 |
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