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 UMP, USC Stock Axle Pin
H&K Heckler & Koch
Now: $27.86Was: $30.95HK German UMP Rear Stock Axle Pin This is the HK factory German stock pin that allows you to attach the stock to either the factory receiver of a UMP or for those that are doing the USC to UMP conversion. This is required to attach the stock to the...Now: $27.86Was: $30.95 -
On Sale
HK Ambidextrous Sling Pin O-Ring
H&K Heckler & Koch
Now: $1.75Was: $1.95H&K Ambidextrous Sling Pin O-Ring HK ambidextrous sling pin replacement O-ring for all ambidextrous sling pins. This item is a common wear/breakage part that does need to be replaced from time to time. This is the part that creates the + seal to keep...Now: $1.75Was: $1.95 -
On Sale
HK USP Compact Ambidextrous Control Lever Set
H&K Heckler & Koch
Now: $67.45Was: $74.95H&K HK USP Compact Ambidextrous Control Lever Set Includes left and right side control lever as well as the spring pin. This item can be installed on either full-size or compact pistols. The USPC Ambi set has a slightly lower profile for those who...Now: $67.45Was: $74.95 -
On Sale
HK VP9, VP9SK Cocking Aid Filler Left, Right Set
H&K Heckler & Koch
Now: $17.95Was: $19.95Cocking Aid Filler Piece Set For - HK VP9, VP9SK HK VP9/VP9SK Filler set replaces the cocking aids for a "flat" cocking area rather than raised cocking aids as comes standard on the HK VP9 pistol. These are a drop in part for the HK VP9 pistol. Brand new...Now: $17.95Was: $19.95 -
On Sale
HK P Series Cocking Piece LEM
H&K Heckler & Koch
Now: $62.96Was: $69.95HK P Series Cocking Piece LEM Compatible With: HK P30 HK P30L HK P30SK HK P2000 HK P2000SKNow: $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 -
On Sale
HK45, HK45C, P30, P2000 , USP Flat Spring
H&K Heckler & Koch
Now: $8.96Was: $9.95HK Flat Spring For Sear Catch This is a wear and replacement item on your HK pistol. A great spare part and needed spring to have on hand. Compatible With: HK USP 9mm HK USP .40 HK USP .45 HK USP Tactical, Elite, Expert HK USP Compact 9mm HK USP Compact...Now: $8.96Was: $9.95 -
Out Of StockOn Sale
HK91, G3 Buffer - Folding Stock - Replacement
Choate
Now: $3.56Was: $3.95Choate HK 91 & G3 (7.62x51/.308) Folding Stock Replacement Buffer Choate .308 folding stock replacement buffer for all HK91/G3 PTR stocks. A great item to have on hand as these do wear and are prone to breaking. Compatible With: HK 91/G3Now: $3.56Was: $3.95 -
On Sale
HK USP Compact Optic Plate - Burris FastFire - Red Dot Pistol Mount
HKP HK Parts
Now: $39.96Was: $49.95HKP HK USPC Red Dot Pistol Mount Red Dot mounting plate to allow the use of a Burris Fast Fire, Docter, Vortex Venom or other similar specs Red Dot Sights. Replaces rear sight to allow the mounting of a Red Dot Sight to your HK pistol listed above...Now: $39.96Was: $49.95 -
On Sale
HK G36, SL8 Push Pin - Fits Handguard, Lower, Magwell
H&K Heckler & Koch
Now: $31.46Was: $34.95New HK German G36 & HK SL8 Push Pin For Forearm, Mag Well Or Lower Each push pin is a factory German part and is new. This is also required for those doing the SL8 to G36 style conversions. A factory German G36 uses three of these factory push pins...Now: $31.46Was: $34.95 -
On Sale
HK P7 Series Spring - Firing Pin
H&K Heckler & Koch
Now: $7.16Was: $7.95HK P7 Series Firing Pin Spring This item is a great spare to keep on hand, as this item is considered a high-wear item by HK. Compatible With: HK P7 PSP HK P7 M8 HK P7 M10 HK P7 M13Now: $7.16Was: $7.95 -
On Sale
HK416, HK417, MR556, MR762 Takedown Pin Detent Spring
H&K Heckler & Koch
Now: $8.96Was: $9.95H&K HK MR556/MR762/416/417 Takedown Pin Detent Spring New HK German manufacture. Detent spring for the rear takedown pin. Compatible With: HK MR556 HK 416 HK MR762 HK 417Now: $8.96Was: $9.95