Spikes Tactical Upper/Lower Receiver .223 Remington AR Lower, Gray - STS1515
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Spike's Tactical
Overview
The Spike's Tactical Upper/Lower Receiver set is designed for the AR-15 platform and is chambered in .223 Wylde, allowing for versatility in ammunition selection. The gray finish adds a unique aesthetic while maintaining the durability expected from Spike's Tactical products. This receiver set is commonly found in builds utilizing a carbine gas system, making it a solid choice for those looking to optimize their rifle's performance.
Specifications
Spikes Tactical Upper/Lower Receiver .223 Remington AR Lower, Gray - STS1515
August 2026 on GunPartPicker
Spike's Tactical Spikes Tactical Upper/Lower Receiver .223 Remington AR Lower, Gray - STS1515 ranked #137 of the 507 lower receivers builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since May 2026. All time, it ranks #197 of the 1,002 lower receivers builders have added. Builds with this lower receiver are mostly chambered in 5.56 NATO (67%, then .223 Wylde 17%), split between carbine-length (50%) and rifle-length (33%) gas systems, and nearly all AR-15.
It was hard to find in August 2026, in stock on only 8 of the 19 days we checked, and today only Primary Arms has it in stock. Prices barely moved in August 2026, holding around $234, so there haven't been real sales lately. Buying today, the lowest price is $234 at Primary Arms, which matches the best price we saw in August.
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 19 builds that include this one
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Wilson Combat Recon Barrel 5.56 18 Fluted Rifle Gas Stainless 1-8
Rise Armament Ra-524 Blitz Performance Trigger Drop-In
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 1 →Builds in the community that include the Spikes Tactical Upper/Lower Receiver .223 Remington AR Lower, Gray - STS1515
| Build | Parts | Total |
|---|---|---|
 | 28 | $5506.11 |
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