HK UMP/USC Bolt Carrier Groups
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HDPS HK UMP (.45 ACP) Threaded Barrel - 16x1 LH
HDPS
$349.95HK UMP, USC 45 ACP 8" Threaded Barrel HDPS UMP barrels are perfect for the USC to UMP conversions and for a replacement UMP .45 barrel. They are considered by many to be the finest US-made barrel available. This barrel is the same length as a factory HK...HKP-02634$349.95 -
USA HK UMP/USC .45 Semi Auto Bolt Carrier - Complete
USA
$359.95USA HK UMP/USC .45 Semi Auto Bolt Carrier - Complete Replacement part for USC to UMP conversions. Marked .45 semi auto just like the OEM carrier. Compatible With: HK UMP .45 Includes: Extractor Firing Pin Firing Pin Spring Firing Pin Retaining...HKP-18588$359.95 -
H&K UMP (.40 S&W/.45 ACP/9mm) Firing Pin Retainer Pin
H&K Heckler & Koch
$7.95HK UMP Firing Pin - Retainter Pin This is the pin that trips the trip lever on the UMP lower.HKP-01894$7.95 -
H&K UMP (.40 S&W/.45 ACP/9mm) Lower Bolt Carrier Guide
H&K Heckler & Koch
$12.95HK German All Steel UMP Carrier Guide.Fits all HK UMP lowers. This is the steel piece the guides the UMP bolt carrier.HKP-16500$12.95 -
Out Of Stock
MM HK UMP (9mm) Full Auto Bolt
Michaels Machines
$699.95HK UMP 9mm - Full Auto Bolt - Stripped The full auto bolt carrier is for HK UMP rifles. The full-auto bolt carrier will not work in the HK USC conversion rifles. One of the finest aftermarket carriers you can buy. Features: Tungsten filled Heat...HKP-02288$699.95 -
Out Of Stock
MM HK UMP/USC (9mm) Semi Auto Bolt Carrier
Michaels Machines
$699.95HK UMP/USC (9mm) Semi Auto Bolt Carrier The semi-auto bolt group is needed for HK USC to HK UMP caliber conversions. The full-auto bolt carrier will not work in HK USC rifles. Specifications: Tungsten Filled Heat Treated Parkerized...HKP-02283$699.95 -
HK UMP (.45 ACP) Bolt Group
$369.95HK UMP .45 Tungsten Filled Semi Auto Bolt Group Complete.The semi auto bolt group is required for HK USC to HK UMP caliber conversions. Comes complete less the recoil assembly. Tungsten Filled Heat Treated ParkerizedHKP-18751$369.95 -
MM HK UMP 9mm Conversion Kit - 16 inch Barrel
Michaels Machines
$889.95HK UMP 9mm Conversion Kit - US-Made UMP/USC conversion kit will convert existing USC-UMP conversions to 9mm. This is a simple drop-in conversion for those who have already done the USC-UMP conversion. The conversion parts are drop-in, with the...HKP-02284$889.95 -
HK UMP (9mm) Extractor
USA
$39.95New US Made USC, UMP 9mm Extractor: This is the perfect spare part to have for your UMP or USC 9mm conversion. A great spare to have on hand. Please note: HK considers this a high wear and replacement item. Once it is removed from the carrier the spring...HKP-02625$39.95 -
MM HK UMP (.40 S&W) Conversion Kit
Michaels Machines
$999.95HK UMP 40 Caliber Conversion Kit With this UMP Conversion kit, UMP .45 sub guns can be converted to .40 caliber. Machined bolt carriers are available for USC/UMP conversion sub guns. This is a simple drop-in conversion. The time required to change...HKP-18754$999.95 -
MM HK UMP 9mm Conversion Kit
Michaels Machines
$889.95HK UMP & USC 9mm Conversion Kit US Made - 9mm UMP/USC conversion kit will convert existing USC-UMP conversions to 9mm. This is a simple drop-in conversion for those who have already done the USC-UMP conversion. The conversion parts are drop-in with...HKP-02286$889.95 -
H&K UMP (.40 S&W) Bolt Group - Used
H&K Heckler & Koch
$649.95German UMP .40 factory F/A Bolt Group - Complete This item is used in VG shape or better.HKP-00601$649.95 -
H&K UMP (.40 S&W) Conversion Kit - Used
H&K Heckler & Koch
$1,087.95HK UMP .40 Caliber Conversion Kit This UMP conversion kit provides the necessary components to convert .45 sub-guns to .40 caliber. Machined bolt carriers are available for USC/UMP conversion sub-guns. This is a simple, drop-in conversion requiring a...HKP-00729$1,087.95 -
Out Of Stock
H&K UMP (.45 ACP) Bolt Group - Used
H&K Heckler & Koch
$0.00German HK UMP .45 Factory Full Auto Bolt Group Complete Used.Used German bolt carrier complete that is tungsten filled and the factory correct HK UMP .45 cal bolt group. Comes less the recoil assembly.HKP-01231$0.00 -
HKP HK UMP (9mm) Conversion Kit - 3 Lug - Threaded Barrel 1/2 x 28
HKP HK Parts
$999.95HK UMP 9mm Conversersion Kit - USA - 9mm UMP/USC conversion kit will convert existing USC-UMP conversions to 9mm. This is a simple drop-in conversion for those who have already done the USC-UMP conversion. The total conversion requires approximately...HKP-02285$999.95 -
Out Of Stock
HKP HK UMP (9mm) Conversion Kit -Threaded 1/2 x 28
HKP HK Parts
$679.95HK UMP 9mm Conversion Kit - Threaded Barrel 1/2 x 28 9mm UMP/USC conversion kit will convert existing USC-UMP conversions to 9mm. This is a simple drop-in conversion for those that have already done the USC-UMP conversion. The conversion parts are drop...HKP-02287$679.95 -
Out Of Stock
HKP HK UMP (9mm) Semi Auto Bolt
HKP HK Parts
$369.95HK UMP 9mm -Semi-Auto Bolt Group Tungsten Filled Heat Treated Parkerized Includes Extractor Includes Firing pin Retaining Pin Includes Firing pin & SpringThe semi-auto bolt group is required for HK USC to HK UMP caliber conversions. The full-auto...HKP-18752$369.95 -
Out Of Stock
Michaels Machines HK USC/UMP 9mm Semi Auto Bolt Carrier - Incomplete
Michaels Machines
$499.95HK UMP 9mm - Semi-Auto Bolt Stripped Tungsten Filled Heat Treated Parkerized & polished Marked 9X19mm just like the OEM HK boltThe semi-auto bolt is required for HK USC to HK UMP caliber conversions. The full-auto bolt carrier will not work in HK...HKP-19871$499.95 -
Omega HK UMP .45 Semi Auto Bolt Carrier - Complete
OMEGA
$359.95Omega HK UMP .45 Bolt Carrier Complete - Semi Auto Replacement part for USC to UMP conversions. Marked .45 semi auto just like the OEM carrier. Compatible With: HK UMP .45 Includes: Extractor Firing Pin Firing Pin Spring Firing Pin Retaining Pin The...HKP-21316$359.95