The Spike’s Tactical 9mm Spider stripped lower receiver for Glock magazines (brand part no. STLS920) is a forged pistol-caliber lower built around a dedicated Glock magazine well. Spike’s Tactical includes a last round bolt hold open and an oversized magazine release button, and the receiver has a built-in trigger guard. Proprietary parts are included, and the lower uses bullet pictogram selector markings under the Spider logo. At 15 ounces it is a dedicated 9mm platform rather than a standard multi-caliber lower.

Key Specifications

• The lower is for 9mm, a dedicated pistol-caliber receiver rather than the multi-caliber version.
• The magazine well is a dedicated Glock magazine well, so the lower feeds from Glock-pattern 9mm magazines.
• A last round bolt hold open keeps the bolt back after the final shot.
• An oversized magazine release button makes the release easier to reach and press.
• The receiver has a built-in trigger guard as part of the forging.
• The receiver is a 7075-T6 forging, an alloy chosen for strength.
• The finish is MIL-A-8625F Type III Class 2 hard coat anodizing, which holds up to daily handling.
• The selector carries bullet pictogram markings under the Spider logo.
• Proprietary parts are included with the lower, so the 9mm-specific pieces come with the receiver.
• The lower weighs 15 ounces, the published weight for the Glock magazine version.

Frequently Asked Questions

Which magazines does this lower use? It has a dedicated Glock magazine well, so it feeds from Glock-pattern 9mm magazines. Spike’s Tactical sells a separate Colt magazine version.

Is the bolt hold open included? Yes. The Glock version has a last round bolt hold open and an oversized magazine release button.

Is it a complete lower? No. It is a stripped receiver with proprietary parts included, so you add the remaining lower parts, grip and buffer system.

Buy the Spike’s Tactical 9mm Spider Stripped Lower, Glock Magazine

A purpose-built 9mm lower handles magazine feeding and bolt hold open in the receiver itself. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and browse more AR-15 lowers while you are here.