About This

Expandable magwell block ensures a tight fit for Glock-compatible double-stack magwells in 9mm, .
Adjustment knob allows precise expansion for a secure, stable connection within the magwell.
Designed to fit securely in standard bench vise jaws for a rock-solid working platform.
Knurled edges provide improved grip and stability when clamped in a vise.
Compatible with Glock pistols, Glock clones and Glock-mag-fed AR9/PCC platforms.

Overview