Uncompromising Quality & Craftsmanship
HK USC to UMP Conversion Services and Parts For Sale
HK UMP/USC Conversion Services and Parts

HK USC to UMP Conversion Services and Parts For Sale

The USC to UMP conversion is getting more and more popular with HK owners and enthusiasts. The basic USC is not as versatile and not nearly as ergonomic. What you gain by doing the UMP conversion is not only looks and authenticity, it’s also a better feeling and better handling gun. The feel of the grip itself is much better and the folding stock option is a big improvement over the fixed USC stock. If you are in a state that does not allow the folding stock, it is still worth it just for the better feel of the UMP grip. These ergonomics greatly improve the shoot-ability and feel of the USC.

The conversion allows you to use 25 round, double stacked magazines as well. This is an improvement over the factory 10 round or aftermarket 20 round, USC, single stacked magazines.

The ultimate civilian legal UMP clone can be built if you are in a state that allows you to register your gun as an SBR or Short Barrel Rifle.

In any case, we can set you up with a UMP clone that suites your needs and budget! See below for pictures, prices and info.

For completed USC UMP conversions for sale/ready to buy Click Here

UMP parts and UMP parts kit sources:

The ATF requires all NFA and rifle UMP conversions to include no more than 10 “qualifying” foreign parts. Qualifying US made “compliance parts” can be used to keep the parts count under 10.

USC to UMP Conversion Parts for sale
USC to UMP Conversion Parts

Some of the parts we have available for UMPs and USC to UMP conversions, at the best prices around:

We may have other parts or accessories available as well so feel free to contact us for availability and prices!

  Contact

Stock Block type USC to UMP Conversion Service
Base USC to UMP Conversion Service

This is the basic, USC to UMP, stock block type conversion service that we provide: $299
This service includes:

  • Milling the forward barrel cooling vents in the USC receiver to match the venting of the UMP
  • Milling the magazine well of the USC to accept the larger UMP magazine
  • Dying of the gray synthetic USC to the dark black HK coulor
  • Milling of the forward receiver hooks on the UMP lower to accept the USC upper
  • Filling and false pinning of the forward section of the UMP lower for 100% ATF legal piece of mind
  • Dis-assembly and reassembly
  • Optional folding stock hook/catch ( included free in ultimate, weld on type conversion below ): $79

For completed USC UMP conversions for sale/ready to buy Click Here

Fusion, Welded, Fuse job UMP Hinge to USC, Service
Ultimate, Welded UMP Hinge to USC, Service

This is the ultimate USC to UMP conversion service: $499

We weld a real UMP hinge to the back of a USC. This service includes welding the UMP rear section to the USC receiver and adding the stock catch to the side of the gun so that the stock doesn’t flop around when folded in. This “fuse job” conversion offers the most realistic, true to the real thing, conversion a civilian can own! The plastic welding “fusion” procedure requires lots of time and patients as well as plastic welding experience and jigs.

For completed USC UMP conversions for sale/ready to buy Click Here

HK UMP SD prototype
HK UMP SD Prototype Build

All new custom UMP SD conversion service, coming soon!

  • Magpul stock
  • Flip up sights
  • Shaved fixed sites and full length top rail
  • Custom suppressor and ported barrel ( just like the original MP5 SD )
  • Cut out and modified forgrip using Magpul pump action shotgun parts
  • Custom cocking handle
  • AR15 grip adapter
  • and more to come!

Ask about other customizing services and parts CLICK HERE

Additional USC to UMP Services
Additional USC to UMP Services

Additional options include:

  • Folding stock hook/catch addition to USC receiver ( included free in ultimate, weld on type conversions ): $79
  • Cutting and threading the stock USC barrel: $99
  • Fake silencer/barrel extension to bring your short barrel to 16″ for standard rifle transfer: $149
  • Custom camo paint job: $299-$499 CLICK HERE For Custom Finishes Page
  • CA ( California ) compliance parts and modification: $85
  • Remark selector leaver to line up with UMP markings: $45
  • Laser engraving and remarking the USC receiver with UMP markings ( requires a receiver refinish ): $35
  • NFA/SBR engraving: $35
  • Remarking the UMP bullet markings on UMP lower ( any configuration ): $75
  • Ask about other customizing services and parts CLICK HERE