Glock +4 for .45 ACP/10mm w/Wolff spring

Extend your Glock 21 from 13, to a full 17 rounds of firepower!

Built for USPSA's "Limited" Division, the finished magazine is 140mm long, as measured down the back (versus about 120mm stock). Also works (as a +5!) on the 10mm G20.

Requires extended spring (included).