HK Rifle / SMG Parts
Elevate Your HK Rifle with Premium Parts – MP5, HK416, SP5, and More!
Enhance your HK rifle with top-notch parts and accessories. From HK MP5 and HK MP5K to HK SP5 and HK UMP or HK USC, we offer a vast selection. Discover high-quality magazines, binary triggers, stocks, grips, barrels, handguards, sights, and more for your firearm. Whether you own an HK416, HK SP5K, HK G36, or HK MP5 22, we have the Heckler and Koch rifle parts you've been looking for. Shop now to upgrade your rifle to perfection.
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HK MP5, HK90 Series Hammer - Full Auto - 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...HKP-21442$29.95 -
HK MP5K, HK SP89 Top Rail
MI Midwest Industries
$129.95MI HK MP5K, HK SP89 Top Rail Midwest Industries picatinny and M-lok top rail for MP5, HK94 style weapons and clones. An amazing profile option for your MP5 style weapon. Offers a combination of strength, adaptability and extreme lightweight features...HKP-19113$129.95 -
HK UMP, USC Buttstock 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...HKP-00604$30.95 -
HK SP5K Bench Mat
HKP HK Parts
$13.95HK MP5K, SP5K, SP89 Gunsmithing Bench Mat This isn't your ordinary gun cleaning mat. Show your pride for your HK SP5K firearm while using our high quality neoprene rubber backed and cloth topped gun cleaning mat to protect your gun bench, desk, kitchen...HKP-18213$13.95 -
HK MP5 Mount - Trijicon MRO - Ultra Low Profile - Battle Steel
Botach Tactical
$69.95Botach Battle Steel HK Ultra-Low Profile Integrated Mounting Platforms for the Trijicon MRO Ultra-low-profile mount for HK MP5/HK33/HK53 firearms. Features a lower 1/3 cowitness for the Trijicon MRO sights. Compatible With: HK MP5 &...HKP-19530$69.95 -
HK416, MR556 Magazine - 20 Round
H&K Heckler & Koch
$74.95Heckler and Koch HK 20 Round HK MR556 and HK416 5.56/.223 Magazine New HK416 and HK MR556 Factory 20 Round Steel Maritime Coated Magazine. Will fit and work in all AR-15/M16 weapons. Perfect for those who need a lower profile magazine or who will be...HKP-00029$74.95 -
HK91, G3, HK93, HK33, PTR Buffer - Enhanced
HKP HK Parts
$129.95HKP Enhanced Buffer This buffer is the factory correct style PSG1 & MSG90 stock buffer found in all factory HK PSG1, MSG90 German stocks. The overall diameter is .80" Compatible With: HK 91 G3, 93, 33, or PTR stock.HKP-01014$129.95 -
HK MP5, MP5SD Cocking Tube Support - Universal - Steel
HKP HK Parts
$64.95MP5SD, MP5 Universal All Steel Cocking Tube Support 9mm - USA Made from ordnance grade stainless steel from the factory HK German print & specs. An HK German quality part at a great price point. Each MP5 9mm cocking tube support will include the...HKP-18089$64.95 -
HK Ambidextrous Selector Lever - Right Side
H&K Heckler & Koch
$89.95H&K Ambidextrous Selector Lever - Right Side This is the right-side selector of the ambidextrous trigger packs. This part will only work on ambidextrous style or pictogram style housing and trigger packs. New HK German manufactured. Compatible...HKP-00127$89.95 -
HK UMP Folding Stock -
HKP HK Parts
$119.95UMP Folding Buttstock - GSG9 New UMP folding stock. This is a required part for the USC-UMP Conversion using the (stock block B). Compatible With: HK UMP .45 HK UMP .40 HK UMP 9mm HK USC-UMP conversions Can also be used on B&T firearm and stock...HKP-19910$119.95 -
HK 91, G3 Backplate and Recoil Rod Assembly Complete
H&K Heckler & Koch
$24.95H&K 91/G3 (7.62x51 / .308) Backplate & Recoil Rod Assembly Complete Used- Surplus- in good shape. Each backplate comes in the parkerized finished as issued to the German military complete and 100% serviceable. Ready to install. This is also a...HKP-16144$24.95 -
HK Universal Hammer Spring
H&K Heckler & Koch
$9.95New HK German Rifle Hammer Spring For All.308/.223 Semi & Full Auto Trigger Packs The 308/556 hammer spring is a popular upgrade to replace the hammer spring in 9mm and clones that have light primer hits. This is the factory-correct 25 lb. weight for...HKP-00194$9.95