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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MI Blast Can 5/8-24 Thread
MI Midwest Industries
$38.95MI Blast Can 5/8x24 Thread Compatible With: HK 91/G3 HK MR762 HK 23/21/11 HK MSG90 HK PSG1 Specifications: Directs muzzle blast forward on short barrel rifles and pistols. Does not reduce recoil or flash. Constructed from 6061 aluminum, and hardcoat...HKP-21536$38.95 -
HK23E, HK21E Rear Sight Base
H&K Heckler & Koch
$193.95H&K HK21E/HK23E Rear Sight Base Genuine HK German rear site base. Requires post installation machining to accommodate a scope. Compatible With: HK21E HK23EHKP-21508$193.95 -
Vector Arms V51 Fixed Stock
HKP HK Parts
$279.95H&K / HKP V51 Fixed Stock HK Parts A2 style stocks for the Vector V51 platform. We start with a like-new backplate and convert it into a V51 collapsible style and pair it with a like-new, hand-picked stock. The result, a complete A2 stock that...HKP-21270-M$279.95 -
HK MP5KSD Rubber Grip Only - Barrel Shroud Handguard
HKP HK Parts
$179.95HK Parts replacement rubber grip for HK MP5KSD Barrel Shroud and Handguard (Rubber Grip Only) Perfect size handguard to pair with the HKP MP5K SD shrouds. Engages perfectly on the machined lugs of our MP5K SD shrouds. Available exclusively at HK...HKP-20951$179.95 -
HK UMP Magazine - .40 ACP - 30 Round - LEO Marked
H&K Heckler & Koch
$99.95Rare Surplus 30 Round Magazine - LEO Marked - Windowless - UMP .40 S/W Rare UMP .40 windowless magazine with LEO markings. Highly unique magazines as these were "early production" magazines that were used before they switched over to the windowed UMP...HKP-20749$99.95 -
HK53 A3 German Parts Kit
H&K Heckler & Koch
$6,799.95HK German HK53 A3 Factory Parts Kit Complete Minus The Demilled Receiver Includes: HK German desirable 1/7 twist factory cold hammer forged barrel HK ambidextrous 2 round burst trigger group Factory HK 53 wide forearm 4 prong factory flash hider A3...HKP-20729$6,799.95 -
Out Of Stock
HK MP5, MP5K Optic Mount - Low Profile - T1, H1 Aimpoint
USA
$49.95Aimpoint T1 & H1 Low Profile Mount For HK MP5, MP5K New US manufactured scope mount that is similar in style as the revered B&T optics mount only made right here in the USA. All aluminum and made to last with a price that is attractive & hard...HKP-17117$49.95 -
HK G36C Handguard - Handstop and Heatshield
HKP HK Parts
$119.95HKP HK G36C Handguard with Hand Stop and Heat Shield New handguard with heat shield and hand stop fits all HK G36C's or SL8/G36 conversions sized for the G36C barrel. Each unit also features the hand stop with sling attachment points. Hard mounting...HKP-19302-M$119.95 -
On Sale
HK416, MR556 10" M-LOK Rail System - FDFE
KDG Kinetic Development Group
Now: $319.95Was: $374.95Rail System - 10" - Brown - M-LOK - HK MR556 The New KDG HK 556 M-LOK rails are direct mount rail system, replacing the factory HK 556 rail systems. These new rails are identical in design to their big brother, the KDG HK 762 M-LOK Rail system. Like the...HKP-19240Now: $319.95Was: $374.95 -
HK MP5K, SP5K, SP89 Helmet Stock - Folding and Adjustable
B&T Brugger & Thomet
$379.95B&T HK MP5K, SP5K, SP89 Helmet Stock - Folding and Adjustable This Swiss-made folding helmet stock offers a compact, military-grade solution for MP5K-pattern firearms. Built from durable polymer and aluminum, it provides smooth length adjustment and...HKP-18101$379.95 -
On Sale
Picatinny Harris Bipod Adapter - Extended
HKP HK Parts
Now: $9.95Was: $19.95HKP Extended Harris Bipod Adapter Universal Picatinny rail Harris bipod adapterHKP-15374Now: $9.95Was: $19.95 -
HK SL8-1 Front Sight Holder - Incomplete
H&K Heckler & Koch
$34.95Heckler and Koch HK SL8-1 Incomplete Front Sight Holder Front sight holder component for the HK SL8-1 rifle. This is an incomplete assembly and may require additional parts to restore full front sight function. Suitable for repair projects or as a base...HKP-16358$34.95