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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HK416, MR556 Carbine Stock - MOE - Commercial Spec
Magpul
$54.95Magpul MOE (Magpul Original Equipment) Commercial-Spec Model for AR15/M4 Carbines Made in the USA, the MOE stock Commercial-Spec Model is a drop-in replacement buttstock for AR15/M4 carbines using commercial-spec-sized receiver extension tubes. The...HKP-10629$54.95 -
Out Of Stock
HK33, HK93 Buttstock - A2 - Black
$74.95Malaysian Contract Black A2 Stock for HK33, HK93 Malaysian contract black A2 fixed stock for HK33 or HK93 pattern rifles. Ideal as a correct-style replacement stock or to give your 5.56 roller-lock build a classic fixed-stock profile. Compatible...HKP-22428$74.95 -
Out Of Stock
Compact Vertical Foregrip with Hand stop - M-LOK
JMK
$88.95Compact Vertical Foregrip with Hand stop - M-LOK The JMK Vertical Foregrips are ideally suited for applications with restricted space. Equipped with a rapid, straightforward M-LOK attachment system, it can be mounted on any configuration with an M-LOK...HKP-22406-M$88.95 -
HK MP5 Selector Lever Extension - Used
H&K Heckler & Koch
$24.95H&K MP5 Safety Selector Lever Extension - Used Used factory original HK MP5 safety selector lever extension in good condition. This part affixes to the safety selector lever to extend the safety lever for easier actuation. This is a used part,...HKP-99317$24.95 -
HK416, MR556 Muzzle Device - Assault - Closed Tine - 1/2x28
B&T Brugger & Thomet
$109.00B&T Assault Closed Tine Muzzle Device - HK416/MR556 - 1/2x28 Factory B&T 1/2x28 flash hider and suppressor adapter for 5.56 rifles. Includes: ROTEX flash hider Shim kit Rocksett pipette Features: Swiss-manufactured Threaded 1/2x28 High...HKP-22217$109.00 -
On Sale
HK MP5, SP5 Barrel Assembly - Refinished - BLEMISHED
H&K Heckler & Koch
Now: $149.95Was: $399.95H&K HK MP5/SP5 Barrel Assembly - Refinished - BLEMISHED SCRATCHES ON CHAMBER - ROUGH INSIDE - CONDITION MAY VARY - SOLD INDIVIDUALLY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED...HKP-21435-BNow: $149.95Was: $399.95 -
HK416 A5, MR556 A3 Barrel Nut
Nefarious Arms
$39.95Nefarious Arms HK MR556 A3/416 A5 Barrel Nut Whether replacing a barrel nut or sourcing the best parts for your build, the Nefarious MR556/416 barrel nut is an excellent option. Meticulously crafted in the US to the highest quality standards...HKP-22082$39.95 -
On Sale
HK53 Cocking Tube Style
USA
Now: $79.95Was: $149.95HK53 Cocking Tube Style US made cocking tube perfect for an HK53-style build or for use on a custom build Compatible With: HK53 THIS CLOSEOUT PART IS NOT ELIGIBLE FOR RETURN, REFUND, OR EXCHANGE. SALE IS FINAL.HKP-99057Now: $79.95Was: $149.95 -
HK MP5, MP5K Thread Protector - 1/2x32 - RH
HKP HK Parts
$14.95HKP HK MP5/K Thread Protector - Threaded 1/2x32 RH This MP5/K thread protector is designed to safeguard your barrel threads from damage when a muzzle device is not in use. Made in the USA from high-quality steel, it offers durability and a precise fit...HKP-21829$14.95 -
Out Of Stock
Picatinny Optic Mount - 39mm - Aimpoint ACRO / NANO
B&T Brugger & Thomet
$85.00B&T Aimpoint ACRO / NANO 39mm QD Mount The B&T ACRO NANO optic mount is a universal QD mount for any firearm featuring a Picatinny top rail. Keep your optic profile compact with this Swiss made mount. Compatible With: Any firearm featuring...HKP-21761$85.00 -
Out Of Stock
Picatinny Optic Mount - 30mm - Aimpoint ACRO, NANO
B&T Brugger & Thomet
$98.00B&T Aimpoint ACRO / NANO 30mm QD Mount The B&T ACRO NANO optic mount is a universal QD mount for any firearm featuring a Picatinny top rail. Keep your optic profile compact with this Swiss made mount. Compatible With: Any firearm featuring...HKP-21742$98.00 -
On Sale
HK MP5 Bolt Group - 9mm - Full Auto - Complete
H&K Heckler & Koch
Now: $2,245.95Was: $2,874.95H&K HK MP5 9mm Complete Full Auto Bolt Group This is a factory genuine HK German full auto bolt group compiled with the best German parts available for those that need the best parts on their beloved MP5. Last call on these as they are NLA and...HKP-21478Now: $2,245.95Was: $2,874.95