DPM MRS FOR GLOCK 19-19X-23-25-32-45-47 GENS 4-5 10 ADJUSTABLE SETTINGSDPM Adjustable Mechanical Recoil System for Glock Models: 19 19x 23 32 45 47 49 Gens 4 & 5 SKU: 1000008 EAN: 5213007220103 MPN Code: MS GLG4 2 10 Adjustable User Settings! Stainless Steel (Black Oxide) Self lock Spring Plug! Designed to serve factory and modified pistols! The DPM System offers 10 Adjustable User Settings. The 3 Different in Power Buffer springs and the 3 Different (in power too) External Springs can serve the majority of the ammo. In