USA

AR-15 Magazine Loader - Ram-It Loader  Magazine Loader for 556 and 223 magazines. Made in the USA from ABS. Very simple to use.

HK MR556 & MR762 Eyelet Sling Adapter for Carrying Sling  New eyelet sling adapter for carrying slings. The perfect option for those who want to match their RAL8000 or tanodized handguards...

USA HK MP5KSD Shroud and Handguard (Rubber Grip Only) Perfect size handguard for our MP5KSD shrouds. Our handguards will engage perfectly on the machined lugs of our MP5KSD shrouds. The best looking...

USA HK G36 Top Rail Screw

USA Single Optic Front Sight Screw – Extended

HK MP5/K Barrel Extension Faux Suppressor - 15x1 RH Perfect for that rifle build or for those looking for the MP5K-N suppressed look. Dakota tactical review of this exciting new product on an MP5:...

USA HK UMP Left Hammer Spring New U.S hammer spring- left side A high wear item that needs to be changed when light firing pin strikes develop on your USC or UMP firearm. Compatible With:  HK...

USA HK MP5 FBI 0,1 Housing 2 position pictograph housing.

Ejector Lever Axle Retaining Spring This is the perfect spring ring to replace your worn out ejector lever axel spring ring. Made out to HK spec for the best US replacement part on the market...

HK MP5 SD Barrel - Nitride This high quality barrel is processed using the highly desirable nitride process which creates a super hard durable finish. Precision milled to the latest specs with the...

HK UMP & G36 Pistol Grip Storage Insert G36 & UMP pistol grip insert for all G36 & UMP lower housings. This is the piece that locks into place and fits in the bottom of the handle itself...

HK SL8 Magwell - Used - Gray Used Magwell - Gray - SL8

HK SL8 Magwell - Used - Black Used Magwell - Black - SL8

Replacement Screw For Trijicon RMR 6-32 x 1/2" flat head socket cap screw with thread locker. Requires a 2mm allen head key.This replacement screw is to mount your Trijicon RMR optic to your #2...

HK 93/53/MP5/G3 SUO Contract Housing - Used HK93, HK53 SUO polymer lower housing. Malaysian contract housing for SEF type trigger packs. Used- hand picked units already clipped and pinned- ready to...

HK Sl8, G36 Sight Rail With Front & Rear Fixed Sights  US made HK HK Sl8, G36 Picatinny Rail with fixed iron sights. Comes exactly as shown with no mounting hardware. Compatible With: HK...

HK UMP, USC Right Side Hammer Spring For Lowers - USA

Aimpoint T1 & H1 Low Profile Mount For HK MP5, MP5K New US manufactured scope mount that is similar in style as the revered B&T optics mount only made right here in the USA. All aluminum and...

Barrel - USA - HK G36E Brand new HK G36E barrel. Specifications: Barrel length 19"

Newly designed and contracted DMR heavy buffer to be added to existing HK G3,91 PTR rifles that have been outfitted to a role as DMR (Designated Marksman Rifle) for a specialized unit. The Improved...

HK MP5K PDW 10mm Threaded & 3-Lugged Barrel US-made MP5K-N PDW 10mm Barrel that is threaded and 3-lugged with the 9/16x 24 thread pitch. Rare and hard to find, only a few are available.

Front 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's

HK G36 & SL8 Bolt Catch On AR-15 systems this would be similar to a cam pin. Compatible With: G36, G36K, G36C Sl8 variants

HK SL8/G36 Full Size Aftermarket Bottom & Side Rail Set Complete Comes with the bottom and 2 side rails (left and right) as well as the screws and allen wrench. Made of aircraft-grade aluminum...

HK G36 & SL8 Magazine Paddle Release HK G36 Mag Release or mag catch.  Compatible With: HK SL8 HK G36 HK G36K HK G36C

HK G36, HK SL8, HK 416, & HK MR556 Gas Piston - Black Complete assembly with 3X rings installed and nitrided black. Counts as one US-made compliant part for your SL8-G36 style conversion. This is...

HK VP9SK 1/2x28 9mm Fluted Threaded Barrel - Black Each barrel is finely and painstakingly made from ordnance grade steel, heat treated and finished inside and out in the ultra-desirable "nitride"...

SL8 & G36 Extended Bolt Hold Open Lever New SL8, G36, HK243 bolt hold open lever. A must have upgrade for your HK SL8, Sl8-G36 conversion or G36 firearm. The bolt hold open lever is a drop in...

MP5 to MP5K Housing Conversion Service At HK Parts we are now offering our own HK trigger housing conversion service. No one does a better job with quicker turn around then we do. This conversion is...

HK Clipped & Pinned Service - Universal SP5/MP5 At HK Parts we offer our own HK trigger housing clip & pin services. No one does a better job with quicker turn around then we do. We will clip...

HK Small push pin - US MAde All steel small push pin for use on the lower grip housing for a push pin style of lower housing. Black nitride finish which adds extra durability to the pin plus...

25 Round HK UMP 45 LWRC SMG 45 Magazine - FDE Made from advanced polymer material with steel feed lips, just like the German UMP 45 magazine, at a fraction of the cost. Compatible With: HK UMP ...

Trijicon RMR/SRO 45° Rail Offset Adapter Perfect for that situation where you need the versatility of a magnified optic paired with a Trijicon RMR or SRO red dot sight in close quarters. This...

HK MP5, 94 UMP Style Folding Stock With HK Parts Stock Adapter New US UMP style folding stock assembled with our own HK Parts stock adapter. Our HK Parts stock adapter was made from a solid billet of...

HK UMP .45 Magazine Follower - USA New UMP .45 magazine follower for all HK UMP .45 magazines. Compatible With: UMP 45 magazines both US or German

HK MP5K Side Reinforcement Tabs.

HK MP5 .22LR - GSG9 UMP Style Folding Stock w/ HK Parts Stock Adapter New complete MP5 .22lr folding stock with GSG9 UMP style stock section. Each stock uses a UMP style stock for a longer length of...

HK 416 / HK417 Buffer Retainer Spring This item is the spring for the buffer retainer that is held in the rear of the lower receiver. Compatible With: HK 416 HK 417

HK MP5/94 US Made Trigger Group 5 US Made Compliant Parts w/ Flat Trigger HK MP5/94 9mm Semi Auto Trigger Group Complete. Each Trigger Group incorporates the following 922r-compliant parts: US made...

HK MP5K US Made Trigger Group 5 US Made Compliant Parts w/ Flat Trigger HK MP5K 9mm Semi Auto SF style Trigger Group Complete. Each unit is composed of German HK & the finest US made HK Parts...