HK UMP/USC Series
Choose from an expansive selection of HK UMP and USC parts, such as HK UMP Barrels and HK USC Stocks, crafted for those who value reliability and performance. Upgrade with HK USC Handguards and HK UMP Triggers, and experience the difference in quality and craftsmanship.
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Out Of Stock
HK UMP (.40 S&W/.45 ACP/9mm) Paddle Mag Release
$9.95UMP Paddle Magazine Release - US Made New UMP Mag release. This is a very common repair & replacement part as they are fairly easy to break on the UMP lower. Simple & easy to install no gunsmith needed or required. Compatible With: UMP .45 UMP ...HKP-18773$9.95 -
On Sale
HK UMP .45 Magazine Locking Plate - BLEMISHED
USA
Now: $3.95Was: $6.95HK UMP .45 Magazine Locking Plate - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Made in the USAHKP-20136-BNow: $3.95Was: $6.95 -
On Sale
HK UMP 3 Position Selector - Right Side
USA
Now: $4.95Was: $12.95HK UMP 3 Position Selector - Right Side - USED US-made selector lever for all 3 positions for the HK UMP. Compatible With: HK UMP THIS CLOSEOUT PART IS NOT ELIGIBLE FOR RETURN, REFUND, OR EXCHANGE. SALE IS FINAL.HKP-99126Now: $4.95Was: $12.95 -
On Sale
HK UMP Dual Magazine Clamp
USA
Now: $18.95Was: $28.95HK UMP Dual Magazine Clamp US made dual magazine clamp for the UMP platform. Elastic retention allows for quick mag changes. Compatible With: HK UMP THIS CLOSEOUT PART IS NOT ELIGIBLE FOR RETURN, REFUND, OR EXCHANGE. SALE IS FINAL.HKP-99099Now: $18.95Was: $28.95 -
On Sale
HK UMP Index Plate
USA
Now: $4.95Was: $8.95HK UMP Index Plate US-made index plate for the HK UMP. Compatible With: HK UMP THIS CLOSEOUT PART IS NOT ELIGIBLE FOR RETURN, REFUND, OR EXCHANGE. SALE IS FINAL.HKP-99124Now: $4.95Was: $8.95 -
On Sale
HK UMP Index Plate Compression Spring
USA
Now: $4.95Was: $6.95HK UMP Index Plate Compression Spring Index plate compression spring for the HK UMP. Compatible With: HK UMP THIS CLOSEOUT PART IS NOT ELIGIBLE FOR RETURN, REFUND, OR EXCHANGE. SALE IS FINAL.HKP-99123Now: $4.95Was: $6.95 -
On Sale
HK UMP Notched Disk
USA
Now: $9.95Was: $14.95HK UMP Notched Disk US-made notched disk for the HK UMP. Compatible With: HK UMP THIS CLOSEOUT PART IS NOT ELIGIBLE FOR RETURN, REFUND, OR EXCHANGE. SALE IS FINAL.HKP-99125Now: $9.95Was: $14.95 -
Out Of Stock
HK UMP Paddle Mag Release Complete Assembly
$19.95UMP Paddle Magazine Release - US Made - Assembly Complete New UMP Mag release. This is a very common repair & replacement part as they are fairly easy to break on the UMP lower. Simple & easy to install no gunsmith needed or required. Compatible...HKP-19499$19.95 -
On Sale
HK UMP Selector Lever - Left Side
USA
Now: $6.95Was: $12.95HK UMP Selector Lever - Left Side US-made selector lever for the HK UMP. Compatible With: HK UMP THIS CLOSEOUT PART IS NOT ELIGIBLE FOR RETURN, REFUND, OR EXCHANGE. SALE IS FINAL.HKP-99122Now: $6.95Was: $12.95 -
Out Of Stock
HK UMP/USC (.40 S&W) Extractor
$39.95New US-Made USC Or UMP .40 Extractor This part is a repair and replacement item, as these are prone to breakage, and it's a part that's hard to find and a great item to have on hand. Please Note: HK considers this a high wear and replacement...HKP-02624$39.95 -
Out Of Stock
HK UMP/USC (.40 S&W/.45 ACP/9mm) Ejector Lever
$34.95HK UMP, USC Ejector Lever A great spare to have on hand as they are prone to shearing off with use and must be replaced. Perfect for the Omega and Tommy Built Tactical builds. Compatible With: UMP .45 UMP .40 UMP 9mm USC .45 and all caliber of...HKP-18508$34.95 -
Out Of Stock
HK USC, HK UMP Front Sight - Black
USA
$11.95Front Sight - HK USC, UMP - USA Easy to swap out with just knock out the roll pin replace and then re-insert the roll pin. Common wear or breakage part. Compatible With: All models of USC and UMP'sHKP-19124$11.95 -
On Sale
HKP HK UMP (.40 S&W/.45 ACP/9mm) Lower Locking Pin - BLEMISHED
HKP HK Parts
Now: $7.95Was: $12.95HKP HK UMP (.40 S&W/.45 ACP/9mm) Lower Locking Pin - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. For use with all HK UMP lowers & USC to UMP...HKP-18580-BNow: $7.95Was: $12.95 -
Out Of Stock
HKP HK UMP (9mm) Semi Auto Bolt
HKP HK Parts
$369.95HK UMP 9mm -Semi-Auto Bolt Group The semi-auto bolt group is required for HK USC to HK UMP caliber conversions. The full-auto bolt carrier will not work in HK USC rifles. Includes: Extractor Firing pin Retaining Pin Firing pin &...HKP-18752$369.95 -
Out Of Stock
HKP HK UMP (9mm) Standard Barrel
HKP HK Parts
$299.95HK UMP 9mm Barrel US made replica of the HK UMP 9mm barrel. Counts as one US made compliant part as an added bonus.HKP-18640$299.95 -
Out Of Stock
HKP HK UMP .45 ACP Barrel - Threaded 16x1 RH - 3-Lug
HKP HK Parts
$399.95HKP H&K UMP .45 ACP Barrel - Threaded 16x1 RH - 3-Lug New USA made .45 ACP 8" barrel for the UMP or Omega firearms. Each barrel is threaded 16x1 RH and 3-Lug tipped. The finest barrel for the UMP .45 ACP on the market. Specifications: Overall Length...HKP-18511$399.95 -
Out Of Stock
HKP HK UMP 9mm Conversion Kit -Threaded 1/2x28
HKP HK Parts
$679.95HKP HK UMP 9mm Conversion Kit -Threaded 1/2x28 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 in with...HKP-02287$679.95 -
On Sale
HKP HK UMP/USC 4 Piece M-Lok Set - Anodized - Black - BLEMISHED
HKP HK Parts
Now: $59.95Was: $149.95HKP HK UMP/USC 4 Piece M-Lok Set - Anodized - Black - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Upgrade your UMP and USC with the HK Parts 4-piece...HKP-21663-BL-BNow: $59.95Was: $149.95 -
HKP HK UMP/USC 4 Piece M-LOK Set - Cerakote
HKP HK Parts
$139.95HKP HK UMP/USC 4 Piece M-LOK Set - Cerakote Upgrade your UMP/USC with the HK Parts 4-piece M-LOK set. This kit significantly expands the range of attachments you can add to your UMP/USC receiver, making it the ultimate choice for customization. Crafted...HKP-21664-M$139.95 -
Out Of Stock
HKP HK USC (.45 ACP) Carbine Mag Release - Extended
HKP HK Parts
$24.95HK USC Alloy Mag Release - Extended Billeted alloy USC magazine release. This is a very common repair & replacement part as they are fairly easy to break on the USC lower. With this new metal mag release you get more surface area as well as a much...HKP-17918$24.95 -
Out Of Stock
HKP/H&K UMP 9mm Conversion Kit - Threaded Barrel 1/2x28 - 3-Lug
HKP HK Parts
$999.95HKP/H&K UMP 9mm Conversion Kit - Threaded Barrel 1/2x28 - 3-Lug 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...HKP-02285$999.95 -
SchleTek Firearm Cleaning & Tuning Kit
B&T Brugger & Thomet
$69.95SchleTek Firearm Cleaning & Tuning Kit The SchleTek Firearm Cleaning & Tuning Kit is an all-in-one solution for maintaining peak performance and reliability in your firearms. Designed for both professionals and enthusiasts, this comprehensive kit...HKP-21732$69.95 -
On Sale
Uncle Mike's UMP/G36 Sling Swivel - USED
Now: $5.95Was: $14.95Uncle Mike's UMP/G36 Sling Swivel - USED This sling swivel is a reliable component designed for use with the UMP and G36 firearms. It allows for secure attachment of a sling, ensuring easy carry and quick access. Compatible With: HK UMP HK...HKP-99065Now: $5.95Was: $14.95 -
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