Small Parts
Explore our extensive selection of HK small parts at HKParts, perfect for repairs, upgrades, and custom builds. Our inventory includes high-quality, precision-machined replacement parts and maintenance kits designed for a wide range of HK models. Whether you need push pins, springs, or custom components, our HK-specific small parts ensure optimal performance and durability for your firearm.
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On Sale
HK MP5, MP5K Extractor - 9mm
H&K Heckler & Koch
Now: $59.36Was: $65.95New HK German HK 9mm Extractor - Latest Generation This is the latest and greatest HK MP5 (newest F style version) German extractor. Each unit works with all HK MP5, HK94, HK MP5K, HK SP89, HK SP5K, or other 9mm clones. A great part to have as a spare or...Now: $59.36Was: $65.95 -
On Sale
MI MP5 M-LOK Handguard
MI Midwest Industries
Now: $112.45Was: $124.95MI MP5 M-LOK Forearm Compatible professional grade one piece design Simple installation, include all tools Mil-spec top rail. Features 15 full and 5 half M-LOK slots. Features two anti-rotation QD sling swivel sockets. Constructed of 6061 aluminum, hard...Now: $112.45Was: $124.95 -
On Sale
Grayguns HK P30, P2000 Short Reset System
Grayguns
Now: $81.00Was: $90.00Grayguns HK P30, P2000 Short Reset System Replicate our custom in-house short reset conversion with a drop-in kit for your HK P2000 or P30 without a thumb safety. Cut from bar stock steel, these kits provide an exacting fit for easy install...Now: $81.00Was: $90.00 -
On Sale
HK USP, HK45 Short Reset System
Grayguns
Now: $81.00Was: $90.00Grayguns HK USP, HK45 Short Reset System This Short Reset System for the HK USP and HK45 replicates the short reset conversion available at Grayguns. Cut from bar stock steel, these kits provide an exacting fit for easy install. The kit shortens the...Now: $81.00Was: $90.00 -
On Sale
HK P Series Combat Defensive Action Upgrade For LEM 4.1 Pistols
H&K Heckler & Koch
Now: $80.95Was: $89.95H&K HK P Series Combat Defensive Action Upgrade For LEM 4.1 Pistols Found on all (European CDA) variant 4.1 models. This drop in LEM upgrade kit is a great trigger upgrade that reduces the trigger pre-travel by about 5mm or 1/3 of the original...Now: $80.95Was: $89.95 -
On Sale
Grayguns HK P30, P2000 Short Reset System Thumb Safety
Grayguns
Now: $81.00Was: $90.00Grayguns HK P30, P2000 Short Reset System Thumb Safety Replicate our custom in-house short reset conversion with a drop-in kit for your HK P30 with thumb safety. Cut from bar stock steel, these kits provide an exacting fit for easy install.The...Now: $81.00Was: $90.00 -
Out Of StockOn Sale
HK USP Full Size Ambidextrous Control Lever Set
H&K Heckler & Koch
Now: $106.16Was: $117.95Ambidextrous Left & Right Side Control Lever Set. Genuine Heckler & Koch ambidextrous control lever kit includes left and right side control lever as well as the roll pin - everything that's needed for installation on all USP or USPC...Now: $106.16Was: $117.95 -
On Sale
HK MP5, HK94 Recoil Rod Assembly
H&K Heckler & Koch
Now: $62.96Was: $69.95H&K MP5 & HK94 Recoil Rod Assembly HK German MP5 and HK94 recoil rod assemblies come complete with rod, spring, nylon rings, end caps, and rivets installed. This is a great item to have on hand as a spare part as this is a wear-and-tear...Now: $62.96Was: $69.95 -
On Sale
HK USP, USP Tactical, USP Expert Complete Recoil Assembly
H&K Heckler & Koch
Now: $85.45Was: $94.95H&K HK USP/ Tactical/ Expert Complete Recoil Assembly Brand new factory German manufacture. Compatible With: HK USP 45 Tactical HK USP 45 Expert HK USP 45 Elite Tech Note: The USP Tactical recoil assembly can be used in a standard USP 45 without...Now: $85.45Was: $94.95 -
On Sale
HK MP5, MP5K Magazine Release - 4-Piece Set
HKP HK Parts
Now: $63.96Was: $79.95HKP HK MP5/MP5K 4-Piece Set Magazine Release Each magazine catch set consists of 4 pieces and is a mixture of German HK and US-made parts. This is the set that provides left-to-right mag release controls. Each Set Includes: Mag catch (German) Push...Now: $63.96Was: $79.95 -
On Sale
HK45, HK45 Compact Ambidextrous Control Lever Kit
H&K Heckler & Koch
Now: $62.96Was: $69.95Factory HK German Genuine HK45 & HK45C Ambidextrous Control Lever Kit A must-have upgrade for those who would like to have the ability of both left and right side control levers. Hard to find, easy to install as this is a drop-in part - no...Now: $62.96Was: $69.95 -
On Sale
HK USP, USP Compact Match Hammer
H&K Heckler & Koch
Now: $93.56Was: $103.95HK Match Hammer This is the factory-correct match hammer marked with the factory-correct "S" marking on the left-hand side of the hammer. Compatible With: HK USP 9mm HK USP .40 S&W HK USP .45 ACP HK USP Compact 9mm HK USP Compact .40 S&W...Now: $93.56Was: $103.95