Lightning-Fast Mag Changes. 60 Second Slide-On, One Screw Installation. Requires no gunsmithing, or alterations to the receiver. 3/32” Hex Wrench included. Made from super slippery, super durable, Acetyl Delrin. Easy to file off the slight wear over time even for the daily dry-firer. SPECS: Acetyl Delrin. Stock Colors: Black only (for now) International Customers please contact us by email: sales@techwearusa.com