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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HK91, G3 Clubfoot Stock with Enhanced Heavy Buffer
Michaels Machines
$429.95US Michaels Machines Clubfoot Stock for HK G3, HK91, PTR-91, and Clones U.S clubfoot stock comes fully assembled and ready to drop onto your HK G3, HK91, PTR or other HK style firearm. Enhanced heavy buffer installed for optimum performance. The...HKP-20068$429.95 -
On Sale
HK Linear Compensator - Threaded 5/8x24 RH - 5.56 and .308
HKP HK Parts
Now: $87.95Was: $149.95HKP (5.56/.223) and (7.62x51/.308) Linear Compensator - Threaded 5/8x24 RH Linear compensators give you the best of both worlds. Remove the outer blast shield for standard compensator and muzzle break functionality. Or, keep it on as a courtesy to the...HKP-19338Now: $87.95Was: $149.95 -
HK416, MR556 Piston Guide - Threaded - Upper Receiver
H&K Heckler & Koch
$19.95Heckler and Koch Upper Receiver Threaded Piston Guide for HK MR556 and HK416 Compatible With: HK416, MR556 M27HKP-02640$19.95 -
HK G36C, G36K Gas Piston - US
GSG9
$74.95GSG9 complete gas piston for HK G36C and G36K - US made This is a popular part for those upgrading to an HK SL8 to HK G36K or HK36C barrel length. Each piston counts as one 922r compliant part. Made in the USA. Features: New USA manufactured gas piston...HKP-18253$74.95 -
HK51, PTR PDW Fixed Stock
PTR
$299.95PTR Fixed Stock for HK51 and PTR PDW 7.62x39 and 7.62x51 / .308 Each stock is constructed of new U.S. & German HK parts. This stock also counts as one U.S. 922r compliant part. Perfect for those that have registered sears or want to SBR your...HKP-02408$299.95 -
HK MP5 Magazine Follower - .40 S&W, 10mm - USA
HKP HK Parts
$9.95HKP MP5 40/10 Magazine Follower A perfect replacement part for all HK MP5 40/10 magazines. Also counts as one 922r compliant part.HKP-16506$9.95 -
On Sale
HK21, HK11 Barrel - 7.62 / .308 - 14.5"
RCM
Now: $599.95Was: $684.95RCM HK21 and HK11 Barrel - 14.5" RCM HK11 barrels are expertly crafted from mil-spec 41V50 CHF blanks and are fully salt bath nitrided, delivering exceptional wear and corrosion resistance. These hybrid barrels feature an E cut barrel face and are...HKP-21631Now: $599.95Was: $684.95 -
HK91, G3 Magazine Pouch - Used
H&K Heckler & Koch
$18.99H&K 91/G3/MSG90 (7.62x51/.308) Pouch - Used Compatible With Magazines for the Following Applications: HK 91 HK G3 HK PSG-1 HK MSG-90 PTR-91 Vector 51 Century HK 308 Other custom HK91/G3 style builds and clonesHKP-21555$18.99 -
HK416, MR556, HK417, MR762 Pistol Grip with Tools - RAL8000
H&K Heckler & Koch
$159.95Heckler and Koch's Pistol Grip With Tools - RAL 8000 HK German grip with HK tools stowed in the grip's storage compartment. Finish your HK build with our favorite grip or upgrade your AR-15 platform. Compatible With: HK 416 HK MR556 HK417 HK...HKP-21462$159.95 -
HK G36, SL8 Bipod
H&K Heckler & Koch
$449.95New HK G36 & HK SL8 Factory Bipod Heckler & Koch German made. Manufactured with steel-reinforced HK composites. Compatible With: HK G36 HK SL8-6 Newer black rifles or the SL8-1 with a proper forearm HK G36K - Must be an early style that has a...HKP-00270$449.95 -
HK MP5SD Locking Piece - 115 Degree - 9mm
H&K Heckler & Koch
$179.95HK German MP5SD Factory Locking Piece MP5 "action" SD locking piece is the current factory-correct locking piece for the MP5SD. For optimal results, use the action 3 or F bolt head for the most reliable feeding and extraction. These upgrades work...HKP-00135$179.95 -
Out Of Stock
HK MP5K, SP5K ACR Stock with Adapter
Magpul
$579.95HK SP5K ACR Stock Our aircraft-grade aluminum SP5K ACR adapter is now offered in this combo stock unit. Pre-installed and ready to drop in. With this SP5K ACR combo stock you will add the capability of an adjustable cheek rest and length of pull...HKP-20826-M$579.95