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, AP5 Firing Pin Spring
MKE
$4.88HK MP5, AP5 Firing Pin Spring The MKE firing pin spring is compatible with all MP5, AP5, AP5-P, MP5K, and .40/10 variants, as well as most in-spec clones. The firing pin is one of the most frequently replaced repair items, making this spring an essential...HKP-22485$4.88 -
Out Of Stock
HK416, MR556, HK417, MR762 Takedown Pin - Rear - A4 Style
H&K Heckler & Koch
$43.95H&K MR556, HK416, HK417, MR762 Rear Takedown Pin Factory A4 rear takedown pin. Will work for A1 and A4 applications. Compatible With: HK MR556 A1 and A4 HK416 HK MR762 A1 and A4 HK417 AR-14, M4, M16HKP-22029$43.95 -
HK SEF Short Axle Selector Lever for Metal Trigger Housings - Refinished
HKP HK Parts
$34.95HKP SEF Short Axle Selector Lever for Metal Trigger Housings - Refinished HK steel SEF short axle selector lever. Fits all metal HK grip frames. Please note that the polymer (plastic) style SEF housing uses the long axle SEF selector lever and not this...HKP-21921$34.95 -
On Sale
HK33, HK53, HK93 Dual Magazine Clamp
HKP HK Parts
Now: $39.96Was: $49.95HKP HK33, HK53, HK93 Dual Magazine Clamp Securely hold two HK33 magazines together for fast mag swaps. Precision-machined from billet aluminum and anodized in the popular red or classic black. Our dual mag clamp is a must for those quick mag changes...HKP-21608-MNow: $39.96Was: $49.95 -
HK416 Barrel Multi Tool
Nefarious Arms
$124.95Nefarious Arms HK 416 Barrel Installation and Multi Tool HK416 multitool patterned off a genuine HK 416 wrench with added features. Use with a traditional 1/2″ torque wrench or the plug-and-socket style torque wrench that utilizes the ball...HKP-21487$124.95 -
Out Of StockOn Sale
HK21 Drum Hanger
HKP HK Parts
Now: $164.95Was: $195.95HKP HK21 Drum Hanger Our HK21 drum hanger is precisley machined from 4140 billet steel, heat-treated to 50 Rockwell, and parkerized for a durable finish. A lower cost alternative to the discontinued factory hanger, the HK Parts drum hanger is built for...HKP-21453Now: $164.95Was: $195.95 -
HK416 Gas Block Assembly Tool
Nefarious Arms
$94.95Nefarious Arms HK 416 Gas Block Assembly Tool A Nefarious Arms creation for those that like to service or replace their 416 gas block. This assembly tool will effortlessly help you assemble or disassemble your 416 gas block by simply aligning the two...HKP-21273$94.95 -
HK90 Series Trigger - Refinished
H&K Heckler & Koch
$19.95Refinished German 90 Series Trigger Compatible With: HK91, G3, PTR HK93, 33, 53 HK MP5, 94, Zenith, POF, MKE Clone or other custom buildsHKP-20678$19.95 -
Out Of Stock
Picatinny Rail Cover - 45mm
H&K Heckler & Koch
$14.95H&K 45mm Picatinny Rail Cover - Universal New factory HK rubberized picatinny rail cover. Specifications: Rail cover dimensions: 45x26x7 mm Compatible With: HK picatinny rails Other Picatinny railed applicationsHKP-18857$14.95 -
HK417, MR762 Mag Catch Retainer Ring
H&K Heckler & Koch
$10.95Heckler and Koch Magazine Catch Retainer Ring for HK417 and HK MR762 Compatible With: H 417, MR762HKP-16521$10.95 -
HK416, MR556 Bolt Carrier
H&K Heckler & Koch
$397.95H&K HK MR556/416 Factory Bolt Carrier With The Newer Style Bolt Retaining Key This is the factory one-piece carrier that has the out-of-battery disconnect and the bolt retaining latch assemblies installed to make up the HK MR556 (556...HKP-02718$397.95 -
Out Of Stock
HK G36 Backplate - Recoil Buffer - US
USA
$44.95HK G36 Backplate With Recoil Buffer New G36 Backplate with new G36/SL8 recoil buffer. This is a great spare or replacement to have on hand. These are also required for those that are doing the SL8-G36 conversions provided by Tommy Bostic & Chopstix...HKP-18538$44.95