Choosing the right stripped lower receiver is the foundational step for a reliable, multi-caliber rifle build. The lower defines fit, compatibility, and long-term durability—so selecting a forged, purpose-built receiver improves accuracy potential and parts longevity.

SPIKE’S TACTICAL STRIPPED SPIDER LOWER RECEIVER is forged from 7075 T6 aluminum, finished with a black hard coat anodize, and built with a low shelf for modern bolt carrier groups. It supports multi-caliber builds, is RDIAS compatible, and features the distinctive spider logo. This lower accepts Glock-style magazines and requires a buffer and stock of your choosing to complete the rifle. Price: $151.19.

The combination of 7075 T6 forging and hard coat anodize delivers a high strength-to-weight ratio and excellent corrosion resistance. The low shelf design is popular for modern, multi-caliber builds because it improves bolt carrier alignment for AR-styled systems. Compatibility with Glock magazines opens up reliable magazine options for calibers that use that pattern, and the RDIAS compatibility is noted for builders who are matching specific upper and fire-control components—always ensuring compliance with local and federal laws when selecting parts. Shop this product

What makes this lower a tactical-grade choice

Spike’s Tactical is a recognized name in the industry; the SPIKE’S TACTICAL STRIPPED SPIDER LOWER RECEIVER stands out because it blends durable metallurgy with practical features for adaptable builds. The spider logo is laser-etched for a clean factory look, and the receiver’s geometry supports a wide range of trigger groups and stock options (note: buffer and stock are sold separately).

Fitment, installation, and use notes

Because this lower accepts Glock-style magazines, builders planning on pistol-caliber carbine or alternative-caliber setups should verify magazine compatibility with their chosen upper. The low shelf and standard dimensions make installation straightforward for experienced builders and armorers. Given the RDIAS compatibility, consult qualified guidance and legal requirements before installing any specialty components.

For detailed specs and to confirm current stock and pricing, View product details and pricing.

Whether you’re assembling a dedicated multi-caliber project or upgrading to a forged 7075 T6 platform, this lower offers a balance of durability, compatibility, and value at $151.19. Check current availability and complete your parts list by visiting the shop page—click to see options and purchase through the retailer. Check availability

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