ERGO 4-Slot Low Pro U.M.P. Picatinny Rail

Use your Picatinny accessories on your M-LOK® compatible handgaurds with this low profile conversion system. Each takes up one M-LOK® compatible slot. Stackable design allows you add multiple of these side by side to create a continuous picatinny rail.

The outside of this UMP is a Picatinny rail. The inside is the mounting system to the M-LOK® compatible handguard.

Hard anodized finish on 6061 T6 Aluminum