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HK MR556 & HK416 Buffer Tube Wrench The perfect metric wrench to remove and install the MR556 & HK 416 castle nuts on the buffer tube. A perfect addition to have on hand for OTB or other HK buffer tube upgrades, etc. Made from all steel, heat...

 HK UMP .45 ACP Barrel - Threaded 16x1 LH - 3-Lug New USA made .45 ACP 8" barrel for the UMP or Omega firearms. Each barrel is threaded 16x1 LH and 3-lug tipped. The finest barrel for the UMP .45 ACP on the market. Specifications: Threaded 16x1...

Front Sight Roll Pin - HK UMP, USC, G36, & SL8    

MP5K, SP89 Locking Piece - 110 Degree - RCM US-Made Locking Piece. Made from ordnance grade steel, heat treated, and made to last by RCM. HK no longer makes the 110-degree locking piece as they use the 100-degree locking piece in all 9mm MP5 and MP5K...

H&K 90 Series Trigger New German 90 series Compatible With: HK91, G3, PTR HK93, 33, 53 HK MP5, 94, Zenith, POF, MKE Clone or other custom builds

MP5 Receiver Flat - PTR/LSC New PTR 9mm Receiver Flat made on the original LSC tooling. This flat is considered by many to be the most sought-after HK flat available on the market and perfect for that HK custom build. This item is not considered an FFL...

H&K 10 Round HK USP .45 ACP Standard Floor Plate   Perfect for concealed carry as the flat floor plate has a lower profile. Compatible With: HK USP .45 Magazine - 10 round HK USP .45 Tactical Magazine - 10 round

SP5 Case Deflector - 9/10/40   Factory HK case deflector for the SP5 platform chambered in 9mm, 10mm, and .40 S&W.   Compatible With: H&K SP5 9/10/40  

Friction Sear-USED For SEF, Navy Trigger Packs hk335393, 91, G3,  Used in excellent condition, HK German Friction Sear for SEF & Navy trigger packs. This item is also referred to as the catch with roller but more commonly called a sear.

HK45 Trigger Rebound Spring This part is also known as the trigger return spring. Compatible With: HK45 HK Tactical HK45 Compact HK45 Compact Tactical

RCM HK45 .45 ACP Tactical Barrel - Threaded .578x28 RH HK45 & HK45 Tactical threaded barrel compatible with a variety of flash hiders and sound suppressors. Unlike the factory HK45 Tactical barrel, which has a metric 16x1 LH thread, this barrel...

HK Factory MP5SD Barrel Port Brush A much-needed barrel brush to keep the barrel clean on all factory HK MP5SD'S. Fits HK factory SD barrels or in-spec clone barrels such as RCM US-made barrels. Compatible With: MP5SD models Grab a...