Spikes Tactical Crusader AR-15 Lower Receiver - Multi-Cal
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Spike's Tactical
Overview
The Spike's Tactical Crusader AR-15 Lower Receiver is a stripped lower designed for the AR-15 platform, allowing builders the flexibility to pair it with various calibers. With a standard trigger pin size of .154, this lower accommodates a wide range of triggers and components, making it versatile for different configurations. This lower is frequently seen in builds that utilize a carbine gas system and support multi-caliber setups, making it a solid choice for those looking to customize their rifle.
Specifications
August 2026 on GunPartPicker
Spike's Tactical Spikes Tactical Crusader AR-15 Lower Receiver - Multi-Cal ranked #195 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 #166 of the 961 lower receivers builders have added. Builds with this lower receiver are nearly all chambered in 5.56 NATO, split between carbine-length (33%) and pistol-length (33%) gas systems, and nearly all AR-15.
It was in stock most days in August 2026, and today 5 of the 7 retailers we track have it in stock. It dipped to $83.99 at GritR Sports for a stretch in August 2026, well under its usual $107.10, so sales do come around. Buying today, the lowest price is $83.99 at GritR Sports, which matches the best price we saw in August.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
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Frequently Built With
The part most often added in each category by the 15 builds that include this one
Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger
Timber Creek Outdoors Ambidextrous Safety Selector - Black
Wilson Combat AR-15 Starburst Gunfighter Pistol Grip Black
Daniel Defense 11.5" 5.56 NATO 1:7 Carbine AR-15 Complete Upper - 10" MFR XS M-LOK Rail
Strike Industries Strike Magazine Catch Black
Noveske AR-15 Takedown & Pivot Pin Set
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.
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