UMP / USC Series

HKP HK UMP Extended Top Rail - Red Nearly an 1" longer than the standard length top rail. This picatinny top rail allows the user to add an eotech, aimpoint, acog, etc. Made in the USA from aluminum material and hard coat anodize in a beutiful Red...

HK German Factory 5 Round USC .45 Magazine This is the only magazine that HK offers for the HK USC unless you want to upgrade to the USC-UMP style of conversions. Compatible With: All HK USC carbines

HK 416/MP5 Sling Swivel Sling swivel for the Walther 416 and MP5 .22 rifles. This will attach to the quad rail on the 416 to give you an attachment point for a 2 point sling. May also be used with the an MP5 that has a tri rail set up.

HK G36 & UMP Slide For 3 Position Burst Only Lowers - 0,1,2 Only  Compatible With: HK UMP HK G36    

GSG9 UMP (9mm) Barrel - Threaded 1/2x28 - 3-Lug This barrel is the perfect addition to your UMP conversion as it includes the 3-lug and threaded 1/2x28 end of the barrel for use with suppressors or factory HK 3-lug flash hiders. Specifications: Threaded...

WOOX HK Rifle, SMG M-LOK Vertical Grip This M-LOK vertical grip is a compact, ambidextrous foregrip made from American walnut with a reversible dual-wall design (vertical wall AND curved wall) to suit different grip styles. The checkered texture is...

HKP HK UMP Apparel and Patch Collection  Represent your platform with the HK Parts UMP Series apparel and accessories lineup. Built for enthusiasts who appreciate iconic firearms and clean, understated design, this collection delivers premium...

H&K Heckler & Koch's HK UMP and HK USC Housing - Lower - Navy Grip - 40 S&W / .45 ACP / 9mm - USED  Priced for ONE Navy Lower Housing ONLY - Each unit Sold INDIVIDUALLY ONLY 4 UNITS AVAILABLE - Condition Varies by Unit Genuine H&K...

H&K UMP/USC/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Hand Stop Filler Piece HK German Hand Stop filler piece for UMP and G36.

WOOX GEN2 Teardrop M-LOK Rail Covers The teardrop M-LOK rail covers upgrade any M-LOK or KeyMod handguard with a warmer feel, more traction, and added heat protection, while bringing that signature wood look to your build. The GEN2 Teardrop pattern uses...

Midwest Industries Arm Brace Hook The Arm Brace Hook is designed for pistols that use a 1.2" diameter buffer tube. It provides a secure and stable point of contact while offering a built-in, ambidextrous QD sling interface. Specifications: Works with...

Strike Industries Dual Folding Stock This Strike Industries stock is ideal for MP5 or MP5K platforms featuring a 1913 Picatinny rail interface. Conveniently compatible with any platform featuring a Picatinny backplate. It offers quick, easy, and...