Rifle / SMG Parts

Rifle / SMG Parts

Elevate Your H&K Rifle with Premium Parts – MP5, HK416, SP5, and More!

Enhance your H&K rifle with top-notch parts and accessories. From MP5 and MP5K to SP5 and UMP/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, SP5K, G36, or MP5 22, we have the H&K rifle parts you've been looking for. Shop now to upgrade your rifle to perfection.

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  • H&K HK G36C Forearm - Black H&K HK G36C Forearm - Black

    H&K HK G36C Forearm - Black

    H&K Heckler & Koch

    $139.95
    HK German G36C Handguard With Heat Shield & Hand Stop Each unit features the hand stop locations for adding rails to the left, right, and bottom should you choose to. Compatible With: HK G36C HK SL8-G36C conversions
    HKP-00620
    $139.95
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  • H&K HK USP/45/P2000 Sear Axle

    H&K HK USP/45/P2000 Sear Axle

    H&K Heckler & Koch

    $9.95
    Sear Axle Compatible With: HK USP 9mm HK USP .40 S&W HK USP .45 ACP HK USP Compact 9mm HK USP Compact .40 S&W HK USP Compact .357 SIG HK USP Compact .45 ACP HK USP Compact LEM HK45 HK45 Compact HK P2000 9mm HK P2000 .40 S&W HK P2000 .357...
    HKP-01251
    $9.95
    Qty in Cart: 0
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    $9.95
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  • H&K MP5 9mm Parts Kit 100% German - A2 Stock & FBI Lower

    H&K MP5 9mm Parts Kit 100% German - A2 Stock & FBI Lower

    H&K Heckler & Koch

    $2,299.95
    HK German MP5 9mm Used Parts Kit Complete MP5 Parts Kit - 9mm (Minus Receiver) All MP5 Kits: 100% German Parts HK 3-Lug MP5 Barrel - cold hammer forged Cocking Tube Front Sight Tower Wide Forearm - Black Bolt Group - MP5 Full Auto Two small and one...
    HKP-01911
    $2,299.95
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  • H&K MP5, 94 Magazine Spring - 15 Round

    H&K MP5, 94 Magazine Spring - 15 Round

    H&K Heckler & Koch

    $8.95
    HK German MP5, 94, SP89, MP5K 15 Round Magazine Spring Compatible with all 15 Round MP5 and 94 style curved magazines. This is a must-have repair and replacement part, great to have for spares.
    HKP-00090
    $8.95
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    $8.95
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  • H&K MP5, MP5K Front Sight Tower H&K MP5, MP5K Front Sight Tower

    H&K MP5, MP5K Front Sight Tower

    H&K Heckler & Koch

    $169.95
    H&K MP5, MP5K Front Sight Tower This is the factory-correct part for your HK MP5, MP5K build, not a recycled or incorrect G3/91 triple frame. This is a factory HK German part. Compatible With: MP5, MP5K SP5, SP5K HK94 SP89
    HKP-00842
    $169.95
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  • H&K MP5-N Parts Kit 100% German - A3 Stock & Navy 3 Position Lower - RARE

    H&K MP5-N Parts Kit 100% German - A3 Stock & Navy 3 Position Lower - RARE

    H&K Heckler & Koch

    $4,499.00
    H&K MP5-N Parts Kit 100% German - A3 Stock & Navy 3 Position Lower - RARE All German HK MP5 Navy parts kit with 3 lug and threaded barrel, Action 3 bolt group, A3 retractable stock, 3 position navy lower, one 30 round curved...
    HKP-15172
    $4,499.00
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  • H&K MP5F & MP5 40/10 Cocking Handle H&K MP5F & MP5 40/10 Cocking Handle

    H&K MP5F & MP5 40/10 Cocking Handle

    H&K Heckler & Koch

    $85.99
    H&K MP5F & MP5 40/10mm Cocking Handle New HK German factory correct cocking handle. Each unit is to be used with the correct 40/10 or F-style cocking handle support and cocking tube. Compatible With: MP5 40 MP5 10mm MP5 .357 MP5 9X25 Dillon MP5...
    HKP-00098
    $85.99
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  • Out Of Stock
    H&K MP5K/SP89 9mm 2 Position (0,1 Pictogram) FBI Style Trigger Housing - Push Pin H&K MP5K/SP89 9mm 2 Position (0,1 Pictogram) FBI Style Trigger Housing - Push Pin

    H&K MP5K/SP89 9mm 2 Position (0,1 Pictogram) FBI Style Trigger Housing - Push Pin

    H&K Heckler & Koch

    $0.00
    H&K MP5K/SP89 9mm 2 Position (0,1 Pictogram) FBI Style Trigger Housing - Push Pin This HK German MP5K FBI style (0,1) trigger housing is designed for push pin type receivers. It is compatible with all HK German ambidextrous trigger packs and...
    HKP-16057
    $0.00
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  • Out Of Stock
    H&K MP5K/SP89/SP5K 9mm Incomplete End Cap H&K MP5K/SP89/SP5K 9mm Incomplete End Cap

    H&K MP5K/SP89/SP5K 9mm Incomplete End Cap

    H&K Heckler & Koch

    $0.00
    HK Factory German MP5K, SP-89, SP5K End Cap - Incomplete Each pistol end cap is OEM HK German MP5K, MP5K-N, SP5K, SP89 stripped end cap.  Compatible With: MP5K SP89 SP5K MP5K-N MP5K-PDW MP5K clones or other custom builds
    HKP-18208
    $0.00
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  • Out Of Stock
    H&K Scope Mount Ring Set - 1 Inch For 30mm Scope H&K Scope Mount Ring Set - 1 Inch For 30mm Scope

    H&K Scope Mount Ring Set - 1 Inch For 30mm Scope

    H&K Heckler & Koch

    $89.95
    H&K Scope Mount Ring Set - 1 Inch For 30mm Scope Each set includes one complete set of inserts for one complete setup (4 individual sides). This is a Genuine HK German part. Insert rings (1 inch) - HK 30mm claw mount not included.
    HKP-02474
    $89.95
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  • H&K UMP/USC (.40 S&W/.45 ACP/9mm) Hammer Spring - Left

    H&K UMP/USC (.40 S&W/.45 ACP/9mm) Hammer Spring - Left

    H&K Heckler & Koch

    $9.95
    HK UMP & USC - Left Side Hammer Spring For All Lowers A high-wear item that needs to be changed when light firing pin strikes develop on your USC or UMP firearm. Compatible With:  HK UMP models 45, .40, & 9mm. USC .45 and other conversion...
    HKP-01898
    $9.95
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  • H&K Universal Harris Bipod Adapter H&K Universal Harris Bipod Adapter

    H&K Universal Harris Bipod Adapter

    H&K Heckler & Koch

    $199.95
    HK Factory Harris Bipod Adapter - Low Profile This adapter is to attach the Harris bipod to any Picatinny rail. It is compatible with all Picatinny railed forearms or applications. A new HK German manufactured part made for the HK 416, MR556, HK417...
    HKP-01852
    $199.95
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  • HK German SEF SEMI .308 Clipped & Pinned Trigger Group HK German SEF SEMI .308 Clipped & Pinned Trigger Group

    HK German SEF SEMI .308 Clipped & Pinned Trigger Group

    H&K Heckler & Koch

    $549.95
    HK German SEF SEMI .308 Clipped & Pinned Trigger Group The new HK German-made semi-auto trigger group comes in .308 caliber already clipped & pinned. Compatible With: HK 91 HK G3 C308 PTR-91 HK .308 rifles. SEF Navy Style Trigger Group...
    HKP-00210-CP
    $549.95
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  • HK USC (.45 ACP) USC to UMP Conversion ACR Stock Block HK USC (.45 ACP) USC to UMP Conversion ACR Stock Block

    HK USC (.45 ACP) USC to UMP Conversion ACR Stock Block

    $149.95
    HK USC To ACR Stock Adapter A new product that allows you to add the widely popular Remington ACR folding, adjustable stock to your USC-UMP conversion. This offering is for the stock block and hardware to attach your ACR stock for your HK USC when doing...
    HKP-17357
    $149.95
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  • HKP (5.56/.223) Bore Cleaning Brush

    HKP (5.56/.223) Bore Cleaning Brush

    HKP HK Parts

    $1.95
    Bore Cleaning Brush For .223/556  This item is ideal to have on hand for cleaning the bore of the barrel. This item is highly recommended for cleaning.
    HKP-03331
    $1.95
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  • Out Of Stock
    HKP 38 Round HK MP5 Magazine HKP 38 Round HK MP5 Magazine

    HKP 38 Round HK MP5 Magazine

    HKP HK Parts

    $79.95
    MP5, MP5K 9mm Curved Magazine - 38 Round - Red Follower New USA manufactured MP5, MP5K - 38 round magazine. These units will come with a red follower installed for a quick and easy visual identification of an empty magazine. As an added bonus each mag...
    HKP-17394
    $79.95
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  • HKP HK 416 .22LR Dual Magazine Clamp HKP HK 416 .22LR Dual Magazine Clamp

    HKP HK 416 .22LR Dual Magazine Clamp

    HKP HK Parts

    $49.95
    HKP HK 416 .22LR Dual Magazine Clamp - Black Securely hold two HK 416 .22LR magazines together for fast mag swaps. Precision-machined from billet aluminum. Our dual mag clamp is a must for those quick mag changes. Compatible With: HK 416 .22LR
    HKP-21607
    $49.95
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  • HKP HK 93/53/33 (5.56/.223) Ambidextrous 0,1 Trigger Pack HKP HK 93/53/33 (5.56/.223) Ambidextrous 0,1 Trigger Pack

    HKP HK 93/53/33 (5.56/.223) Ambidextrous 0,1 Trigger Pack

    HKP HK Parts

    $379.95
    HKP HK 93/53/33 (5.56 / .223) Ambidextrous 0,1 Trigger Pack Finally a lower cost alternative to the spendy and hard to find all German HK FBI or 0,1 ambi trigger packs. Now for the first time, we have the ever popular trigger pack available in an all...
    HKP-17233
    $379.95
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  • HKP HK 9mm Enhanced Thread Protector - 13.5x1 HKP HK 9mm Enhanced Thread Protector - 13.5x1

    HKP HK 9mm Enhanced Thread Protector - 13.5x1

    HKP HK Parts

    $19.95
    HKP HK 9mm Enhanced Thread Protector - 13.5x1   This enhanced thread protector is crafted from stainless steel and designed for 13.5x1 threaded barrels. Its unique design not only fits over and protects the crown of your barrel but also...
    HKP-21603
    $19.95
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  • Out Of Stock
    HKP HK MR556/416 SS Firing Pin

    HKP HK MR556/416 SS Firing Pin

    HKP HK Parts

    $29.95
    Firing Pin For HK 416 & MR556 Firearm - USA Made from hardened stainless steel and comes new in the white. Compatible With: HK416 HK MR556 HK CR556 HK M27
    HKP-01756
    $29.95
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  • Out Of Stock
    HKP HK UMP (.40 S&W/.45 ACP/9mm) Paddle Mag Release - Extended

    HKP HK UMP (.40 S&W/.45 ACP/9mm) Paddle Mag Release - Extended

    HKP HK Parts

    $24.95
    UMP Paddle Magazine Release - Extended Billeted alloy UMP magazine release. This is a very common repair & replacement part as they are fairly easy to break on the UMP lower. With this new metal mag release you get more surface area as well as a much...
    HKP-17919
    $24.95
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    $24.95
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  • Out Of Stock
    HKP HK UMP, USC & G36, SL8 Sear HKP HK UMP, USC & G36, SL8 Sear

    HKP HK UMP, USC & G36, SL8 Sear

    HKP HK Parts

    $14.95
    HK Complete Sear G36, UMP, USC, SL8 Made in the USA Compatible With: HK UMP HK USC HK G36 HK SL8
    HKP-19555
    $14.95
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    $14.95
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  • HKP MP5 40/10 Ambidextrous (0,1) Trigger Pack HKP MP5 40/10 Ambidextrous (0,1) Trigger Pack

    HKP MP5 40/10 Ambidextrous (0,1) Trigger Pack

    HKP HK Parts

    $324.95
    HKP MP5 40/10 Ambidextrous (0,1) Trigger Pack Finally a lower cost alternative to the spendy and hard to find all German HK FBI or 0,1 ambi trigger packs. Now for the first time, we have the ever popular trigger pack available in an all German & US...
    HKP-17231
    $324.95
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  • HKP MP5 9mm Reverse Stretch Pistol Build Kit - Complete

    HKP MP5 9mm Reverse Stretch Pistol Build Kit - Complete

    HKP HK Parts

    $1,774.95
    MP5 Reverse Stretch 9mm Pistol Build Kit Complete - German & USA Made Parts MP5-RS 9mm parts kit complete with all the parts needed for an MP5 semi-auto pistol. Each kit comes with all 6 of the needed US made compliance parts to be legal as a pistol,...
    HKP-17121
    $1,774.95
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    $1,774.95
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  • Out Of Stock
    HKP MP5K/SP89 9mm Trigger Group 2 Position Housing 0,1- Safe, Semi Only HKP MP5K/SP89 9mm Trigger Group 2 Position Housing 0,1- Safe, Semi Only

    HKP MP5K/SP89 9mm Trigger Group 2 Position Housing 0,1- Safe, Semi Only

    HKP HK Parts

    $0.00
    HKP/H&K MP5K/SP89 9mm Safe & Semi Only Trigger Group - Clipped & Pinned Introducing a cost-effective alternative to the rare and expensive all-German HK FBI or 0,1 ambidextrous trigger group, now available in a 2-position Navy factory German...
    HKP-17241
    $0.00
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    $0.00
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  • Lee Sporting, Magpul HK MP5 Complete Trigger Group Flat Trigger Push Pin Lee Sporting, Magpul HK MP5 Complete Trigger Group Flat Trigger Push Pin

    Lee Sporting, Magpul HK MP5 Complete Trigger Group Flat Trigger Push Pin

    Lee Sporting, Magpul

    $549.95
    Lee Sporting Complete Trigger Group - MP5 Push Pin - Flat Trigger Ergonomic upgrade to OEM grip. 4.3oz lighter than OEM trigger group. Housing made from MJF PA11 Nylon. Bespoke ejector lever CNC cut from 4140. Compatible With: HK PTR Dakota...
    HKP-20483
    $549.95
    Qty in Cart: 0
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    $549.95
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  • On Sale
    Maglula Sig MPX Magazine Loader/Unloader - Black Maglula Sig MPX Magazine Loader/Unloader - Black

    Maglula Sig MPX Magazine Loader/Unloader - Black

    Maglula

    Now: $24.95
    Was: $34.95
    Maglula Sig MPX Magazine Loader/Unloader - Black The Maglula Magazine Loader/Unloader is an all-in-one magazine speed loader for the Sig MPX SMG 9mm Magazines. It is simple to use and eliminates thumb pain and wear on the feed lips. This Magazine Loader...
    HKP-19005
    Now: $24.95
    Was: $34.95
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    Now: $24.95
    Was: $34.95
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  • Omega HK UMP Cocking Handle Assembly

    Omega HK UMP Cocking Handle Assembly

    OMEGA

    $34.95
    Omega USC/UMP Cocking Handle Assembly   Omega UMP cocking handle assembly is a great complete replacement for broken or worn out cocking handle assemblies. Everything you need for a complete replacement. US made by Omega. UMP cocking handle assembly...
    HKP-21271
    $34.95
    Qty in Cart: 0
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    $34.95
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  • PTR-32 (7.62x39) Locking Piece - 70 degree PTR-32 (7.62x39) Locking Piece - 70 degree

    PTR-32 (7.62x39) Locking Piece - 70 degree

    PTR

    $63.95
    PTR-32 (7.62x39) Locking Piece - 70 degree New PTR Locking Piece For PTR-32. Marked "70" for the PTR-32 series of rifles and pistols. This is a 70 degree locking piece. New PTR manufacture. This locking peice will also work for custom HK builds as well.
    HKP-18519
    $63.95
    Qty in Cart: 0
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    $63.95
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  • RCM 300 BLK Locking Piece RCM 300 BLK Locking Piece

    RCM 300 BLK Locking Piece

    RCM

    $49.95
    RCM 300 BLK Locking Piece New US manufactured 300 BLK locking piece for custom 300 builds or other custom 300 BLK HK style roller locked firearms. Compatible With: HK 93 & 33  
    HKP-15547
    $49.95
    Qty in Cart: 0
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  • SB Tactical SBM4 Pistol Stabilizing Brace SB Tactical SBM4 Pistol Stabilizing Brace

    SB Tactical SBM4 Pistol Stabilizing Brace

    SB Tactical

    $74.99
    SB Tactical SBM4 Pistol Stabilizing Brace The SBM4 is the evolution of the original SB15 Pistol Stabilizing Brace . . . thinner, lighter and with enhanced cheek weld ergonomics. Includes: Pistol stabilizing brace Adjustable nylon stabilizing...
    HKP-17903
    $74.99
    Qty in Cart: 0
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    $74.99
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  • Solar Tactical HK MP5, HK 93, HK 91 Grip Wrap For SEF Contoured Lower Solar Tactical HK MP5, HK 93, HK 91 Grip Wrap For SEF Contoured Lower

    Solar Tactical HK MP5, HK 93, HK 91 Grip Wrap For SEF Contoured Lower

    Solar Tactical

    $79.95
    Solar Tactical HK MP5, HK 93, HK 91 Grip Wrap For SEF Contoured Lower Featureless Kydex grip wrap for use with detachable magazines. Prevents a wrap around style pistol grip. Allows the use of the factory magazine release and detachable magazines over...
    HKP-19071
    $79.95
    Qty in Cart: 0
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    $79.95
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  • Solar Tactical Kydex HK G36 Grip Wrap - Black Solar Tactical Kydex HK G36 Grip Wrap - Black

    Solar Tactical Kydex HK G36 Grip Wrap - Black

    Solar Tactical

    $59.95
    Kydex Grip Wrap - HK G36 Featureless Kydex grip wrap for use with detachable magazines. Prevents a wrap around style pistol grip. Allows the use of the factory magazine release and detachable magazines.
    HKP-18895
    $59.95
    Qty in Cart: 0
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    $59.95
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  • Surefire (7.62x.308) SOCOM 3-Prong Flash Hider - Threaded 5/8x24 Surefire (7.62x.308) SOCOM 3-Prong Flash Hider - Threaded 5/8x24

    Surefire (7.62x.308) SOCOM 3-Prong Flash Hider - Threaded 5/8x24

    Surefire

    $159.95
    Surefire (7.62x.308) SOCOM 3-Prong Flash Hider - Threaded 5/8x24 The SureFire three-prong flash hider is designed for Armalite AR-10, DPMS LR308, and other 7.62 rifles with 5/8x24 muzzle threads. Its patent-pending design reduces muzzle flash by over 99%...
    HKP-19992
    $159.95
    Qty in Cart: 0
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    $159.95
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