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.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
Out Of StockOn Sale
HK MP5, MP5K Contact Piece for Paddle Mag Release - 9mm - US
HKP HK Parts
Now: $12.76Was: $15.95HK MP5, MP5K 9mm Contact Piece - USA Factory correct US manufactured MP5, MP5K 9mm Contact Piece for Paddle magazine release. Each part was made using the same material and manufacturing methods used on the German HK latest production parts. Hard to find...Now: $12.76Was: $15.95 -
On Sale
HK USP Optic Plate - Burris FastFire - Red Dot Pistol Mount
HKP HK Parts
Now: $39.96Was: $49.95HKP HK USP 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. Compatible With: HK Full Size - USP 9mm HK Full Size - USP .40 HK Full Size - USP .45 (Not...Now: $39.96Was: $49.95 -
On Sale
HK G36, SL8 Push Pin for Handguards, Lowers, Magwells
H&K Heckler & Koch
Now: $17.05Was: $18.95HKP HK G36, SL8 Forearm, Lower, Magwell U.S Push Pin U.S. made G36 push pin finished in black oxide. This push pin is also required for converting the SL8 to a G36. G36's use three of these factory push pins per rifle whereas the SL8 has two.Now: $17.05Was: $18.95 -
On Sale
M-LOK Rail Section - 3 Slots
Magpul
Now: $17.05Was: $18.95Magpul M-LOK 3 Slots Rail Section Designed for use with all M-LOK compatible hand guards and forends, M-LOK aluminum rail sections allow the attachment of various 1913 Picatinny spec rail-mounted accessories such as lights, vertical grips, etc. Machined...Now: $17.05Was: $18.95 -
On Sale
HK MP5, G3, PTR, HK93 Push Button for Magazine Catch
H&K Heckler & Koch
Now: $8.05Was: $8.95Push Button For Magazine Catch Compatible With: G3 91 MP5 MP5K SP5K-PDW (For SP5K's not equipped with the paddle release, purchase this kit) 94 93 33 PTR, Clones, ETC.Now: $8.05Was: $8.95 -
On Sale
HK45, HK45C, USPC Magazine Floorplate - .45 ACP - 10 Round
H&K Heckler & Koch
Now: $13.46Was: $14.95H&K 10 Round HK USPC/45C 45 Magazine Floorplate Each floor plate is the new style rubberized floorplate for enhanced life. A great spare part to have on hand for repair and replacement of parts. This floorplate is commonly called the "elephant foot"...Now: $13.46Was: $14.95 -
On Sale
HK416, MR556 HK417, MR762 Spring- Firing Pin
H&K Heckler & Koch
Now: $13.46Was: $14.95H&K MR556/MR762/416/417 Firing Pin Spring This part is great to have on hand as this item is a high wear and replacement part and one of the most common breakage parts on the HK 416/MR556 rifles. Compatible With: HK MR556 HK 416 HK MR762 HK 417 HK...Now: $13.46Was: $14.95 -
On Sale
HK German Roller +2 - Used - 8.02mm
H&K Heckler & Koch
Now: $7.16Was: $7.95H&K German Roller +2 - Used - 8.02mm Used HK standard (8.02 mm) locking roller. The proper roller size is essential for proper bolt gap. HK German Manufacture. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the...Now: $7.16Was: $7.95 -
On Sale
HK MP5, HK94, MP5K, SP89 Firing Pin - Titanium
HKP HK Parts
Now: $39.96Was: $49.95HK Parts Titanium Firing Pin for HK MP5, HK MP5K, HK94, and HK SP89 Grade 6 Titanium firing pin. Each was made using the factory HK specifications from original HK German blueprints. This is the finest US made Titanium firing pin available anywhere, at...Now: $39.96Was: $49.95 -
On Sale
HK91, G3 Firing Pin
H&K Heckler & Koch
Now: $17.95Was: $19.95HK G3, HK91, PTR 762/.308 Firing Pin HK German, new factory part made from steel. Great for spares as this is a common wear item. Compatible With: HK G3 HK91 HK PTR CETME & C308Now: $17.95Was: $19.95 -
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 USP Full Size Optic Plate - Trijicon RMR / SRO, Holosun 407C / 507C - Red Dot Pistol Mount
Evolution Gun Works
Now: $44.96Was: $49.95Evolution Gun Works HK USP Full Size Trijicon RMR-SRO, Holosun 407C-507C Mount Includes: Mounting hardware Features: Material: 7075 aluminum Coating: matte black hardcoat Overall length: 1.780" Overall width: 1.1" Mounting hardware: (2) 6-32...Now: $44.96Was: $49.95