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
-
HK -4 Roller For Bolt Head 7.96mm - Under-sized
H&K Heckler & Koch
$27.99H&K -4 Roller For Bolt Head 7.96mm - Under-sized The proper roller size is essential for proper head spacing and bolt gap. New HK German not surplus or used goods. German-made -4 roller, each roller is priced per roller. Please Note: The price listed...$27.99 -
Out Of Stock
HK90, MP5K Sear Catch - Steel - US
HKP HK Parts
$47.95HKP HK Parts HK90, HK MP5K Sear Catch - Steel - USA Made - Billeted Machined - Steel Hard to find and important for keeping your HK build 922r compliant. This US-made sear counts as one US-compliant part for your rifle or build. Machined from a bar of...$47.95 -
HK416, MR556, MR762 Buffer Retainer Pin
H&K Heckler & Koch
$3.95H&K HK MR556/MR762/416 Buffer Retainer Pin Compatible With: HK MR556 HK 416$3.95 -
HK P7 Series Drop Safety Catch Spring
H&K Heckler & Koch
$9.95HK P7 Drop Safety Catch Spring This is one of the most common wear items on the P7 series of firearms—a must-have spare part and hard to find. Compatible With: PSP P7M8 P7M13 P7M10$9.95 -
HK MP5, MP5K, HK93, HK91 Sight Clamping Screw - Rear Retainer
H&K Heckler & Koch
$4.95HK German Rear Sight Retainer / Clamping Screw$4.95 -
HK VP9, P Series Extractor
H&K Heckler & Koch
$54.95HK VP9/P Series Extractor Brand new factory HK German with red loaded chamber indicator present. Compatible With: HK VP9, VP9 Tactical, VP9SK HK VP9A1 F, VP9A1 K HK P30, P30L, P30S & P30SK HK P2000 HK P2000SK$54.95 -
HK Standard Roller 8.00mm - Used
H&K Heckler & Koch
$7.958.00mm Standard Size (zero or unmarked) For HK Roller Lock Bolt Head HK spec unmarked 8.00mm roller that will fit all HK bolt heads including HK91/G3, HK93/33/53, HK94, MP5, SP89 all clones and the Cetme & Cetme clones. The best roller on the market...$7.95 -
HK416, HK417, MR556, MR762 Buffer Retaining Pin
H&K Heckler & Koch
$15.95H&K HK MR556/MR762/416/417 Buffer Retaining Pin New HK German proprietary HK designed buffer pin unique to the HK 416 and MR 556 series. Compatible With: HK MR556 HK 416 HK MR762 HK M27$15.95 -
HK90 Series Locking Pin - Stock - Large
MKE
$6.95MKE Large Push Pin for your HK90 Series Stock Each large stock push pin is used to retain the stock to the receiver on the 90-series firearms. These are great replacement or spare part to keep on hand as they fit all of the 90-series firearms below. The...$6.95 -
HK Spring - Rear Sight - German
H&K Heckler & Koch
$4.95H&K German Rear Sight Spring HK German rear sight spring for rear diopter sights.$4.95 -
HK 90 Series Hammer - MP5/G3/93/53/33 - German - Used
H&K Heckler & Koch
$29.95Hammer, Full Auto HK 90 Series Trigger Packs - German HK - Used German HK Hammer- used, surplus in VG-EXC shape and in perfect working order. This hammer is the hammer that is most commonly used in semi auto trigger packs as the secondary sear catch is...$29.95 -
HK UMP, USC Stock Axle Pin
H&K Heckler & Koch
$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...$30.95