Home / Services HK USC to UMP / HK UMP/USC Picatinny Optic Top Rail Trade In View cart “HK UMP .40 Magazine LEO Marked Used” has been added to your cart. HK UMP/USC Picatinny Optic Top Rail Trade In$3900 SKU: UMPRLTOP01 Categories: Services HK USC to UMP, UMP G36 Tags: UMP, usc Product ID: 4275 Picatinny/1913 accessory top optic rail for HK UMP and USC. High quality aluminum, black anodized, with screws. Fits HK UMP and USC as well as in spec clones. PD Trade in/Used Rail Black Anodized Aluminum Product is out of stock Notify me when this product is back. Please enter a valid email! Subscribe Description Additional information Description Picatinny/1913 accessory top optic rail for HK UMP and USC. High quality aluminum, black anodized, with screws. Fits HK UMP and USC as well as in spec clones. PD Trade in/Used Rail Black Anodized Aluminum Additional information Weight 2.5 oz Dimensions 7 × 1 × 1 in Manufacturer Black Ops Defense Related products Out of stock HK G36 Picatinny Handguard Accessory Rail Set $4900 Out of stock HK UMP 4 Position Lower Housing Grip Frame Trigger Group 0 1 2 F $89900 HK G36 SL8 Recoil Rod Assembly Complete $2900 HK UMP .40 Magazine LEO Marked Used $4900