Michaels Machines

New Michaels Machine HK USC/UMP stock block  for use with all HK UMP factory or US made folding stocks. Each unit comes with a thumbscrew  on one end and a slotted section on the other end . This is...

HK UMP .45 – Complete Semi - Auto Bolt MM’s UMP Tungsten filled UMP .45 bolt carrier complete Heat treated , Parkarized and Polished for the best look and function possible, as an added bonus it now...

HK 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...

HK UMP 9mm - Semi-Auto Bolt Tungsten Filled Heat Treated Parkerized & polished Includes extractor Marked 9X19mm just like the OEM carrierThe semi-auto bolt group is required for HK USC to HK UMP...

HK UMP 9mm - Full Auto Bolt - StrippedMM's UMP Tungsten filled UMP 9mm bolt carrier incomplete. The finest aftermarket carrier you can buy. Tungsten Filled Heat Treated Parkerized & PolishedThe...

HK 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...

9mm 3 Lug - Threaded Barrel for HK UMP 9mm

HK UMP 16.5 Inch 9mm Barrel. Fluted just like the factory HK barrels with 16 flutes.

HK UMP 9mm Conversion Kit US made 9mmUMP/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...

HK UMP, USC 9mm Conversion Kit US Made 9mmUMP/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...

Saw Box (M249) Adapter for HK23E Or MM23E Belt Feds

New Extended US-Made Barrel Handle For HK21/HK21E & HK23E Barrels.

HK21 Feed Mechanism Latch Lever

MM HK 21 (7.62x51 / .308) Factory Style T-Rail Set HK21 US-made rails for all HK21 builds. This is similar to the rails above, only prepped/cut for the HK21 feed mechanism. More details...

New custom made adapter that allows you to use HK German factory HK21E belt boxes on the HK21 older style or origional style belt feds. This is a drop in design that will enable to easy and quick...

HK23E & MM23E Belt BoxBrand new HK23E, MM23E US made feed box. The German units have long since been out of production. These are exact copies of the German units. 100% US made.Fits all: MM23E...

New US manufactured HK23E feed mechanism complete with top plate and push pin. The complete unit a great spare to have on hand. Will work with factory HK23E and MM23E firearms

HK21E & MM21E Belt BoxBrand new HK21E, MM21E US made feed box. The German units have long since been out of production. These are exact copies of the German units. 100% US made.Fits all: MM21E...

HK23E Heavy Barrel - 5.56 x 45mm will also accept .223Brand new -US made custom rifle barrel. Quick change HK23E, MM23E or HK13 Barrel. Steel 17.75 inch barrel 1 x 7 twist. Has the original HK heavy...

HK23E Light Contour Barrel - 5.56 x 45mm will also accept .223 Brand new -US made custom rifle barrel. Quick change HK23E, MM23E or HK13 Barrel. Fits all HK23E, MM23E and HK13, MM13 style of...

HK21E/23E Or MSG90 Quick Release Scope Mounting Rail Scope Mount.Made in the USA of the best material and to factory HK specs. First time offered & only available here at HKPARTS.NET.

HK21E/23E Or MSG90 Quick Release Full Picatinney Rail Scope Mount.This is the finest HK scope mount you can get if you want to use a picatinney style mounting platform. Made in the USA of the best...

HK Receiver Reinforcement T-Rail Set For Left and Right Sides T-rails are used to strengthen HK receivers or for custom builds. These are the finest T-rails available on the market. Made from...

US Made Forward Assist Assembly Complete This set includes all of the parts needed for the forward assist. A great set as HK Parts is the only source for the complete forward assist for your HK PSG1,...

MSG-90 Style Receiver Reinforcement Left & Right Side Rail Set Each set is new in white and an exact reproduction of the factory German HK MSG-90 side receiver rails. These rails have the...

US-Made Clubfoot (21E/23E Style) Central Buttstock Section With US Heavy Rubber Buttpad Fits all HK 91/G3/21/23 and HK93/33/53 backplates and buffers. Just add your buffer and backplate and you are...

MM Fixed Stock Heavy Rubber Butt pad   This part gives a larger surface area to spread the recoil absorption with a wider surface (less felt recoil). It adds an aggressive look and feel to your...

MM Club Foot Stock This clubfoot stock comes assembled with some German and US-made parts. Compatible with: HK 93 HK 53 HK 33 Includes: MM 21E Clubfoot Central Stock Section - US Made US Heavy...

US Made Clubfoot (21E/23E Style) Central Buttstock Section With US Heavy Rubber Buttpad in OD Green. Fits All HK 91/G3/21/23 And HK93/33/53 Backplates & Buffers. Just Add Your Buffer &...

Billeted Retimed Hammer That Has Been Professionally "Re-timed" By Michael's Machines For Beltfed HK firearms with registered sear packsA one piece billeted HK retimed hammer is the needed addition...