HK Rifle / SMG Parts

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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  • New - Strike Industries HK MP5 .22LR Dual Folding Stock w/ Adapter - HKP-21769-M HK MP5 Dual Folding Stock with Adapter - .22LR
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    HK MP5 Dual Folding Stock with Adapter - .22LR

    HKP HK Parts / Strike Industries

    $319.95
    Strike Industries HK MP5 .22LR Dual Folding Stock with Adapter The Strike Industries Dual Folding Stock paired with the HKP MP5 .22LR picatinny adapter is one of the best options on the market for those looking for a light, compact folding stock...
    HKP-21769-M
    $319.95
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    $319.95
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  • New - Nefarious Arms HK MR556/416 11" A5 Barrel - HKP-21839 HK416 A5, MR556 A4 Barrel - 5.56 - 11" - Threaded 1/2"x28 - A5
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    HK416 A5, MR556 A4 Barrel - 5.56 - 11" - Threaded 1/2"x28 - A5

    Nefarious Arms

    $594.95
    Nefarious Arms HK MR556/HK416 11" A5 Barrel ***THE BARREL EXTENSION RIM IS MARKED "HAUS" DUE TO AN ERROR BY THE BARREL EXTENSION SUPPLIER.  THE MARKING IS NOT VISIBLE ONCE INSTALLED.  THESE BARRELS ARE GENUINE NEFARIOUS BARRELS AS NEFARIOUS...
    HKP-21839
    $594.95
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    $594.95
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  • New - B&T HK G36/G36K (5.56/.223) Mounting Rail - HKP-21461 HK G36, G36K Optic Mount - Dual Rail, Emergency Sight - NATO Accessory Rail
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    HK G36, G36K Optic Mount - Dual Rail, Emergency Sight - NATO Accessory Rail

    B&T Brugger & Thomet

    $397.95
    B&T HK G36/G36K (5.56/.223) Mounting Rail B&T NAR (Picatinny compatible) mounting rail for HK G36/G36K with emergency sight, dual rail. Compatible With: HK G36 HK G36K  
    HKP-21461
    $397.95
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    $397.95
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  • On Sale
    New - Magpul / HKP HK MP5 SSTG - HKP-21261-M HK MP5, SP5 Trigger Group - Single Stage - SSTG
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    HK MP5, SP5 Trigger Group - Single Stage - SSTG

    Magpul

    Now: $499.95
    Was: $639.95
    SSTG Magpul trigger group The Single Stage Trigger Group is a blend between the past and future. The trigger pack begins life as a factory German trigger pack before being professionally converted into a semi-auto trigger pack. After the conversion, each...
    HKP-21261
    Now: $499.95
    Was: $639.95
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    Now: $499.95
    Was: $639.95
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  • New - Aimpoint Absolute Co-Witness T1 Mount - HKP-19334 Picatinny Optic Mount - Aimpoint T1 - Absolute Co-Witness
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    Picatinny Optic Mount - Aimpoint T1 - Absolute Co-Witness

    Aimpoint

    $14.95
    Aimpoint - T1 Mount Absolute Co-Witness Features a machined recoil lug for consistent, repeatable mounting.  Features:  6061 T6 aluminum Black anodized Machined recoil lug Compatible With: Aimpoint T1 / H1 Series optics Micro T-1 MIL-STD...
    HKP-19334
    $14.95
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    $14.95
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  • HK G36C, SL8 Flash Hider - 4 Prong - Threaded 15x1 RH
HK G36C, SL8 Flash Hider - 4 Prong - Threaded 15x1 RH
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    HK G36C, SL8 Flash Hider - 4 Prong - Threaded 15x1 RH

    GSG9

    $86.95
    GSG9 4 Prong Flash Hider - 15x1 RH Finest quality 4-prong flash hider that is threaded 15x1 right-hand twist (factory HK thread pitch). Perfect for the SL8, G36C, or other type of HK conversion. It also counts as one US-made part for 922R compliance...
    HKP-00631
    $86.95
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    $86.95
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  • On Sale
    New - B&T HK416, HK MR223 M-LOK Handguard (11") with Overgrip - Black - HKP-20403 HK416, MR556 M-LOK Handguard with Overgrip - 11"
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    HK416, MR556 M-LOK Handguard with Overgrip - 11"

    B&T Brugger & Thomet

    Now: $249.95
    Was: $365.00
    B&T M-LOK Handguard OG for HK416/MR556 (11") with "Overgrip" Free-cut Top Rail B&T's one-piece 11-inch M-LOK handguard for the Heckler & Koch HK416 and civilian equivalent MR556 is an amazing improvement for the combat value of these rifles...
    HKP-20403
    Now: $249.95
    Was: $365.00
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    Now: $249.95
    Was: $365.00
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  • New - Wasatch Arms Keymount Muzzle Brake - Threaded 5/8x24 - HKP-20298 Keymount Muzzle Brake - Threaded 5/8x24
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    Keymount Muzzle Brake - Threaded 5/8x24

    Wasatch Arms

    $89.95
    Wasatch Arms Keymount Muzzle Brake - Threaded 5/8x24 The Wasatch Arms keymount brake is compatible with the Dead Air keymount system. The brake has no outisde flats, so there is no need for timing shims or crush washers...
    HKP-20298
    $89.95
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    $89.95
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  • On Sale
    Used - H&K MP5F Parts Kit 3 Position Navy A3 - RARE - HKP-19559
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    HK MP5F Parts Kit 3 Position Navy A3 - RARE

    H&K Heckler & Koch

    Now: $3,234.95
    Was: $3,599.95
    H&K MP5F Parts Kit 3 Position Navy A3 - RARE HK German MP5F A3 9mm Parts Kit Complete - USED 100% GERMAN HK MP5F correct parts the real deal and the most sought after parts kit available (Minus Receiver Of Course). Includes: 100% German Parts HK...
    HKP-19559
    Now: $3,234.95
    Was: $3,599.95
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    Now: $3,234.95
    Was: $3,599.95
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  • New - Surefire Procomp AR Rifles (7.62x51/.308) Muzzle Brake - Threaded 5/8x24 RH - HKP-19486 Procomp AR Rifles Muzzle Brake - 7.62x51 / .308 - Threaded 5/8x24 RH
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    Procomp AR Rifles Muzzle Brake - 7.62x51 / .308 - Threaded 5/8x24 RH

    Surefire

    $95.00
    Surefire Procomp AR Rifles (7.62x51/.308) Muzzle Brake - Threaded 5/8x24 RH The SureFire PROCOMP muzzle brake is designed for AR10/LR308 rifles and variants with 5/8x24 muzzle threads. It significantly reduces recoil impulse and features neutral porting...
    HKP-19486
    $95.00
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    $95.00
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  • New - H&K HK MR762/417 Handguard Grooved Pin - HKP-16822
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    HK417, MR762 Handguard Pin - Grooved

    H&K Heckler & Koch

    $11.95
    H&K HK MR762, 417 Handguard Grooved Pin   Hechler & Koch grooved pin for HK MR762 and HK 417 handguards.   Compatible With: HK MR762 HK417
    HKP-16822
    $11.95
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    $11.95
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  • New - HKP HK MR556/416 Titanium Firing Pin Catch - HKP-17767
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    HK416, MR556 Firing Pin Catch - Titanium

    HKP HK Parts

    $49.95
    HKP HK Parts HK416 and HK MR556 Firing Pin - Titanium Made in the US from grade 6 Titanium. Get the lightest, strongest firing pin available for your HK firearm. Compatible With: HK416, MR556 HK M27
    HKP-17767
    $49.95
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    $49.95
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