UMP / USC Bolt Carrier Groups
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On Sale
HK UMP, USC Recoil Buffer
H&K Heckler & Koch
Now: $18.95Was: $20.95HK German USC & UMP Recoil Buffer Replaceable spare lower housing or buffer for buffer housings. This is a high wear and replacement item and a must-have for spare parts. Compatible With: HK USC .45 HK UMP modelsHKP-00594Now: $18.95Was: $20.95 -
On Sale
HK UMP, USC Firing Pin Assembly - Complete
H&K Heckler & Koch
Now: $74.95Was: $82.95HK German USC & UMP Firing Pin Assembly Complete A great spare to have on hand as this item is a hard-to-find replacement part. Compatible With: USC 45 UMP 45 UMP 40 UMP 9mm ALL USC Conversions ALL UMP MG'sHKP-00609Now: $74.95Was: $82.95 -
On Sale
HK UMP, USC Recoil Rod Assembly, Complete - US Made
HKP HK Parts
Now: $53.95Was: $59.95HKP HK Parts Complete Recoil Spring and Rod Assembly for USC, UMP 45/40/9mm New USA made recoil assembly complete. Our design allows for easy repair and replacement of the recoil spring itself without replacing the entire recoil assembly as found on the...HKP-17989Now: $53.95Was: $59.95 -
On Sale
HK UMP, USC Recoil Rod Assembly, Complete
H&K Heckler & Koch
Now: $71.95Was: $79.95HK USC/UMP 45/40/9mm Recoil Spring/Rod Assembly New HK German. This is great to have as a spare as this is a repair and replacement item. Compatible With: HK UMP 45 HK USC 45 HK UMP 40 HK UMP 9mmHKP-00610Now: $71.95Was: $79.95 -
On Sale
HK UMP, USC Firing Pin Spring
H&K Heckler & Koch
Now: $8.95Was: $9.95H&K UMP/USC (.40 S&W/.45 ACP/9mm) Firing Pin Spring This is a common wear and breakage item. This item also frequently becomes lost by end users when field stripping the UMP and USC Bolts. Compatible with: All HK UMP & USC FirearmsHKP-00262Now: $8.95Was: $9.95 -
On Sale
HK UMP, USC Extractor - .45 ACP
H&K Heckler & Koch
Now: $44.95Was: $49.95New USC & UMP .45 Extractor - German Compatible with both the USC & UMP. Perfect for spares as they are prone to breakage and are a common wear item. Please Note: HK considers this a high wear and replacement item. Once it is removed from the...HKP-00265Now: $44.95Was: $49.95 -
On Sale
HK UMP Extractor - 9mm
H&K Heckler & Koch
Now: $54.95Was: $60.95New HK German USC/UMP 9mm Extractor This is the perfect spare part to have for your UMP or USC 9mm conversion. Hard to find and only available here at HKPARTS.HKP-00266Now: $54.95Was: $60.95 -
On Sale
HK USC, UMP Extractor - .40 S&W
H&K Heckler & Koch
Now: $49.95Was: $54.95HK German UMP Or USC .40 Extractor New HK German factory OEM part. This is a high wear and replacement item as the .40 cal cartridge has a high impulse that results in an increased occurrence of this extractor wearing out and breakage. A must-have...HKP-00264Now: $49.95Was: $54.95 -
On Sale
HK UMP, USC Bolt Catch Pin
H&K Heckler & Koch
Now: $4.95Was: $5.95H&K UMP/USC (.40 S&W/.45 ACP/9mm) Bolt Catch PinHKP-16517Now: $4.95Was: $5.95 -
Out Of Stock
HK UMP, USC Extractor - .45 ACP
$39.95HK UMP & USC .45 Extractor Perfect for spares as they are prone to breakage and are a common wear item. Please Note: HK considers this a high wear and replacement item. Once removed from the carrier, the spring tension is compromised,...HKP-02623$39.95 -
On Sale
HK UMP Firing Pin Retainer Pin
H&K Heckler & Koch
Now: $6.95Was: $7.95HK UMP Firing Pin - Retainter Pin This is the pin that trips the trip lever on the UMP lower. Compatible With: HK UMPHKP-01894Now: $6.95Was: $7.95 -
HK UMP, USC Recoil Rod Spring - Enhanced
HKP HK Parts
$11.95HKP Enhanced Recoil Rod Spring for HK UMP, USC Upgrade or replace your UMP recoil system with HKP's enhanced heavy recoil rod spring from HK Parts. This spring is approximately 10 percent stronger than a standard recoil spring, making it ideal for...HKP-22507$11.95