New HDPS Stock Block B Sling Pin With Loop washer & Quick Pull Pin.This Sling Pin Will Replace The Current Production Stock Block B Hardware And Upgrade To The Sling Pin Pull Style Version.
Quick Detach Sling Pin for Stock Block B - USC, UMPThis Ambidextrous QD Sling Pin allows you to replace your Push Pin Style or Eyelet Sling Loop - Style Pin in your Stock Block B for use of a...
UMP mag block plug. This is designed to use on the HK UMP .45 25 Round Magazine.Very easy to install & use. fits all HK UMP .45 firearms 25 round magazines. USC-UMP .45 Conversions that use the...
New Latest Production HDPS HK USC/UMP Stock Block -B
For use with all HK UMP factory or US-made folding stocks. Each unit comes with a new push-pin design. This is a required part of the HK USC-UMP...
New Michaels Machine HK USC/UMP stock block for use with all HK UMP factory or US made folding stocks. Each unit comes with a thumbscrew on one end and a slotted section on the other end...