Fits the HK UMP Rifle

Extended beavertail

Enhanced 6-position retractable stock

but are available here

We have all the major brands and can custom build the Hi-Capa of your dreams

Gel Strike Delta Blaster Style:Green Fits the HK UMP RiflePerfect for all ages, the GelStrike Delta Blaster delivers hours of mess free fun with an unparalleled, kid friendly battle experience. Gel Balls are water based and biodegradable pellets that dissolve on impact so have fun blasting away in full auto without any cleanup! FEATURES Kid Friendly, Parent Approved Gel Rapid Blaster Recoil Stabilizing Ergonomic Grips Versatile Combat Rails with Scope Laser Attachment Full Auto Strike Trigger Hyper Range