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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  • GSG9 HK G36C/G36K Gas Piston GSG9 HK G36C/G36K Gas Piston

    GSG9 HK G36C/G36K Gas Piston

    GSG9

    $74.95
    HK G36C & G36K Gas Piston Complete - USA New USA manufactured G36C & G36K gas piston complete with 3 X gas piston sealing rings installed. All stainless steel construction with the durable nitride finish. A great spare or replacement part. This...
    HKP-18253
    $74.95
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  • H&K 91/G3 (7.62x51/.308) Fixed Stock - Alpine Green - Surplus H&K 91/G3 (7.62x51/.308) Fixed Stock - Alpine Green - Surplus

    H&K 91/G3 (7.62x51/.308) Fixed Stock - Alpine Green - Surplus

    H&K Heckler & Koch

    $29.95
    HK German Surplus G3, 91, PTR Stock Complete - Alpine Green The Alpine green stock was the last version that the German military produced and is the darkest green version available. All stocks are 90's production, date coded and made by HK for the...
    HKP-17112
    $29.95
    Qty in Cart: 0
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  • H&K 91/G3 (7.62x51/.308) Magazine Catch H&K 91/G3 (7.62x51/.308) Magazine Catch

    H&K 91/G3 (7.62x51/.308) Magazine Catch

    H&K Heckler & Koch

    $19.95
    G3 Magazine Catch High-quality HK German production units are brand-new. These also have the proper newer style cut in them and round shafts. Compatible With: HK G3 HK91 PTR91
    HKP-02073
    $19.95
    Qty in Cart: 0
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  • H&K 93/53/33 & G3/91 5.56/.223 & 7.62x51/.308 Muzzle Protector Cap H&K 93/53/33 & G3/91 5.56/.223 & 7.62x51/.308 Muzzle Protector Cap

    H&K 93/53/33 & G3/91 5.56/.223 & 7.62x51/.308 Muzzle Protector Cap

    H&K Heckler & Koch

    $5.95
    H&K 93/53/33 & G3/91 5.56/.223 & 7.62x51/.308 Muzzle Protector Cap This cap covers the barrel end or flash hider to prevent debris, water, etc., from entering the barrel. The cap can be removed by hand or when the first round is fired with...
    HKP-13959
    $5.95
    Qty in Cart: 0
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  • H&K G3/91 Trunnion- Used H&K G3/91 Trunnion- Used

    H&K G3/91 Trunnion- Used

    H&K Heckler & Koch

    $39.95
    HK German HK G3 & HK 91 Trunnion - Used These trunnions are from demilled G3 parts kits and will have leftover receivers and barrel stubs installed along with factory barrel pins. Please note the picture shows one with the demilled parts removed...
    HKP-00718
    $39.95
    Qty in Cart: 0
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  • H&K HK /MR556416 A5 Ambidextrous Complete Selector Lever Set  - RAL 8K H&K HK /MR556416 A5 Ambidextrous Complete Selector Lever Set  - RAL 8K

    H&K HK /MR556416 A5 Ambidextrous Complete Selector Lever Set - RAL 8K

    H&K Heckler & Koch

    $179.95
    HK 416A5 SEMI & MR556 Ambidextrous Selector Lever Set Complete - RAL 8000 New HK German manufacture. Complete kit to upgrade the selector lever set on the MR556 to the newer HK 416A5 semi style of levers. A drop in upgrade for the MR556 & CR556...
    HKP-17603
    $179.95
    Qty in Cart: 0
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  • H&K SP5 9mm Spec Only SEF Navy Style RH Trigger Housing - Clipped & Pinned H&K SP5 9mm Spec Only SEF Navy Style RH Trigger Housing - Clipped & Pinned

    H&K SP5 9mm Spec Only SEF Navy Style RH Trigger Housing - Clipped & Pinned

    H&K Heckler & Koch

    $179.95
    H&K SP5 9mm Spec Only SEF Navy Style RH Trigger Housing - Clipped & Pinned Fits only HK SP5 9mm. This trigger house is for use with SEF style trigger packs. This will not work with the ambidextrous style trigger pack that comes with the factory...
    HKP-19233
    $179.95
    Qty in Cart: 0
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  • HK G36/UMP Folding Stock Release Spring

    HK G36/UMP Folding Stock Release Spring

    H&K Heckler & Koch

    $9.95
    HK G36 Folding Stock Release Spring This is the spring that fits under the stock release button to activate the folding and retention of the G36 or UMP stock. Compatible With: HK G36 HK G36K HK G36C UMP
    HKP-00637
    $9.95
    Qty in Cart: 0
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  • Out Of Stock
    HK G3K Cocking Tube HK G3K Cocking Tube

    HK G3K Cocking Tube

    $89.95
    G3 Cocking Tube For PTR 91K Or G3K Projects - New Perfect for that custom HK build. These are made by PTR to the correct specifications. We do not use cut-down or Pakistani materials, we only use the best US and German hardware. Compatible With: HK G3K...
    HKP-01462
    $89.95
    Qty in Cart: 0
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  • Out Of Stock
    HK MR762, 417 & G28 Adjustable Buttstock - RAL 8K HK MR762, 417 & G28 Adjustable Buttstock - RAL 8K

    HK MR762, 417 & G28 Adjustable Buttstock - RAL 8K

    H&K Heckler & Koch

    $399.95
    HK G28 Fully Adjustable Stock For The MR762 & HK 417 - Tan- RAL 8000 Just in and hard to find. The HK G28 adjustable stock upgrade to be used on MR762, HK417 stocks. The G28 stock is fully adjustable for length of pull as well as the cheek height...
    HKP-16759
    $399.95
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  • H&K 91/G3 (7.62x51/.308) - 15 Round Magazine H&K 91/G3 (7.62x51/.308) - 15 Round Magazine

    H&K 91/G3 (7.62x51/.308) - 15 Round Magazine

    H&K Heckler & Koch

    $59.95
    HK G3 & HK 91, PTR91 - 15 Round Magazine The HK G3, 91 ,PTR magazine is made by PTR from a German aluminum HK magazine and converted to 15 rounds. Perfect for states such as NJ that only allow a 15 round mag capacity. As an added bonus this magazine...
    HKP-17006
    $59.95
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  • H&K G36 (5.56/.223) 4 Position Retractable Stock - Folding

    H&K G36 (5.56/.223) 4 Position Retractable Stock - Folding

    H&K Heckler & Koch

    $349.95
    HK G36, G36k, G36C, & SL8 Conversion Rear Stock Assembly The G36 KV stock, as it is known, was built by HK for a military contract and is built HK tough with an overall length of 8.5 inches (fully collapsed) to 11.40 inches when fully extended. Each...
    HKP-02682
    $349.95
    Qty in Cart: 0
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    $349.95
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  • H&K HK MP5 Dented Complete Rear Sight Set - Black H&K HK MP5 Dented Complete Rear Sight Set - Black

    H&K HK MP5 Dented Complete Rear Sight Set - Black

    H&K Heckler & Koch

    $49.99
    Rear Sight with Hardware - Used Dented - MP5 German HK MP5 rear sight assembly with a dented 4 position drum. Condition will vary. Includes: HK rear sight Detent Spring windage screw Sight screw Washer Locking washer
    HKP-19247
    $49.99
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  • Harris Engineering Bipod 6-9" - Fully Adjustable With Swivel Harris Engineering Bipod 6-9" - Fully Adjustable With Swivel

    Harris Engineering Bipod 6-9" - Fully Adjustable With Swivel

    Harris Engineering

    $149.95
    Harris Engineering Bipod 6-9" - Fully Adjustable With Swivel This part is manufactured using high-quality parts to ensure excellent function and sustainable use. It attaches to a sling swivel stud. Carrying your rifle with a sling or shooting off-hand is...
    HKP-00983
    $149.95
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  • HDPS HK USC (.45 ACP) Faux Sound Suppressor HDPS HK USC (.45 ACP) Faux Sound Suppressor

    HDPS HK USC (.45 ACP) Faux Sound Suppressor

    HDPS

    $180.99
    HDPS HK USC (.45 ACP) Faux Sound Suppressor New second-gen, latest production HDPS Faux Sound Suppressor for the HK USC (Kit includes the Faux Sound Suppressor, lower rail, and screws) This integral one-piece design is milled from a solid...
    HKP-02369
    $180.99
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  • HKP HK 91/G3 (7.62x51/.308) Fixed Stock Complete with Enhanced Heavy Buffer - Black

    HKP HK 91/G3 (7.62x51/.308) Fixed Stock Complete with Enhanced Heavy Buffer - Black

    HKP HK Parts

    $279.95
    New HK91, G3, PTR-91 U.S Made (PTR-91 Manufactured) Fixed Stock with Enhanced Heavy Buffer Installed Made from all German & U.S. made HK parts. This stock will fit any of the HK G3 & HK 91 & PTR rifles. This stock also counts as one U.S...
    HKP-18937
    $279.95
    Qty in Cart: 0
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  • HKP HK G36K, HK G36C Side Rail - Black HKP HK G36K, HK G36C Side Rail - Black

    HKP HK G36K, HK G36C Side Rail - Black

    H&K Heckler & Koch

    $24.95
    HK Aftermarket G36K/G36C Side Rail For Handguard This will fit the sides (left or right) of the forearm on the G36K and G36C forearms. Comes with all mounting hardware. Each rail is sold individually.
    HKP-00273
    $24.95
    Qty in Cart: 0
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  • HKP MP5 F & MP5 40,10 Recoil Rod Assembly HKP MP5 F & MP5 40,10 Recoil Rod Assembly

    HKP MP5 F & MP5 40,10 Recoil Rod Assembly

    HKP HK Parts

    $49.95
    MP5 F, MP5 40/10 Recoil Spring Rod Assembly Complete - Extra Power This is the correct MP5F or MP5 40/10 Recoil Rod assembly with the proper parts and size. Most commonly used for MP5's that are using +P or +P+ ammunition or any high impulse 9mm. Or for...
    HKP-17833
    $49.95
    Qty in Cart: 0
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  • Maglula UZI Magazine Loader, Unloader Maglula UZI Magazine Loader, Unloader

    Maglula UZI Magazine Loader, Unloader

    Maglula

    $29.95
    Maglula UZI Magazine Loader, Unloader Each part is made to load and unload your 9mm UZI magazines in seconds. This will allow you to do more shooting and less loading. With this loader, magazines can be loaded in 1/3 (60% less) of the time of...
    HKP-14547
    $29.95
    Qty in Cart: 0
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  • PTR HK G3/91 (7.62x51/.308) Locking Piece- 45 Degree PTR HK G3/91 (7.62x51/.308) Locking Piece- 45 Degree

    PTR HK G3/91 (7.62x51/.308) Locking Piece- 45 Degree

    PTR

    $21.95
    45 Degree Locking Piece - US Made PTR standard 45 degree locking piece made in the USA by PTR and is design to be a direct replacement for all .308 HK style firearms. Compatible With: G3 PTR 91 HK 91 Other costume clones
    HKP-18518
    $21.95
    Qty in Cart: 0
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    $21.95
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  • Surefire (5.56/.223) 3-Prong Flash Hider - Threaded 1/2x28 Surefire (5.56/.223) 3-Prong Flash Hider - Threaded 1/2x28

    Surefire (5.56/.223) 3-Prong Flash Hider - Threaded 1/2x28

    Surefire

    $174.95
    Surefire (5.56/.223) 3-Prong Flash Hider - Threaded 1/2x28 The flash hider is engineered for M4/M16 and variants with 1/2x28 muzzle threads. Its patent-pending design reduces muzzle flash by over 99% compared to a plain muzzle. Built from US...
    HKP-17261
    $174.95
    Qty in Cart: 0
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    $174.95
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  • Timney HK MP5K 9mm 2-Stage Trigger Complete Timney HK MP5K 9mm 2-Stage Trigger Complete

    Timney HK MP5K 9mm 2-Stage Trigger Complete

    Timney Triggers

    $629.95
    Timney Trigger for MP5K, SP5K The SEF Timney trigger group comes completely assembled, ready to drop into your receiver. Features a 3rd generation German ejector lever, new SEF selector lever, and a brand new factory German housing. Available exclusively...
    HKP-20515-M
    $629.95
    Qty in Cart: 0
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    $629.95
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  • On Sale
    Walther 20 Round UZI .22 Magazine Spring

    Walther 20 Round UZI .22 Magazine Spring

    Walther

    Now: $1.95
    Was: $3.95
    Walther 20 Round UZI .22 Magazine Spring Uzi .22LR 20 round magazine spring for the Uzi, Walther, Umarex .22 pistol. A good supply of spare mag springs is a must. These are ideal to have on hand as the spring can become damaged or worn out. New fresh...
    HKP-15592
    Now: $1.95
    Was: $3.95
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    Now: $1.95
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  • Bore Boss Pull-Through Bore Cleaner - .44/.45 Bore Boss Pull-Through Bore Cleaner - .44/.45

    Bore Boss Pull-Through Bore Cleaner - .44/.45

    Bore Boss

    $10.95
    Real Avid Bore Boss Pull-Through Bore Cleaner - .44/.45 From the barrel of innovation comes the ultra-compact Bore Boss, the first-ever self-storing, easy-feeding, clean-pulling, field-ready, hassle-free, pure-genius bore cleaner. The single-piece cable...
    HKP-19401
    $10.95
    Qty in Cart: 0
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  • H&K Burst Eccentric Bushing H&K Burst Eccentric Bushing

    H&K Burst Eccentric Bushing

    H&K Heckler & Koch

    $54.95
    HK Burst Eccentric Bushing HK German factory part is found in all HK burst trigger packs. This part is in between the hammer shank hole and the inside of the trigger box hammer axle spacer. This part is one of the most common wear...
    HKP-02647
    $54.95
    Qty in Cart: 0
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    $54.95
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  • H&K German Red Handled Rear Sight Adjustment Tool

    H&K German Red Handled Rear Sight Adjustment Tool

    H&K Heckler & Koch

    $99.95
    H&K German Red Handled Rear Sight Adjustment Tool A must-have sight tool for all HK 90 series rifles, as well as the HK 416, MR556, and HK 417 rifles. Works to adjust any rear diopter-type HK sight for both elevation and windage. We also offer an...
    HKP-00080
    $99.95
    Qty in Cart: 0
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  • H&K German Universal Multi Tool H&K German Universal Multi Tool

    H&K German Universal Multi Tool

    H&K Heckler & Koch

    $79.95
    H&K German Universal Multi Tool This is ideal for the USC or SL8 style of weapon systems. Great multi-tool for sights, handguards, or work on any other accessories.
    HKP-00374
    $79.95
    Qty in Cart: 0
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  • H&K HK MR556/416 Handguard Rail System Screw H&K HK MR556/416 Handguard Rail System Screw

    H&K HK MR556/416 Handguard Rail System Screw

    H&K Heckler & Koch

    $29.95
    HK MR556 & HK 416 Handguard Rail System Screw This is the hex head version for any metric Allen hex head that can be utilized to tighten and release the screw pressure. This can also be used to replace the rail screw on...
    HKP-02717
    $29.95
    Qty in Cart: 0
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  • H&K HK33/HK93 A2 Black Buttstock - Surplus H&K HK33/HK93 A2 Black Buttstock - Surplus

    H&K HK33/HK93 A2 Black Buttstock - Surplus

    H&K Heckler & Koch

    $99.95
    H&K HK33/HK93 A2 Black Buttstock - Surplus HK33 complete black buttstock assembly. Surplus good condition. In perfect working order but will have signs use. This is the original buttstock for the HK33A2. Compatible With: HK33 HK93 HK53 V33, 53,...
    HKP-20133
    $99.95
    Qty in Cart: 0
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    $99.95
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  • HK G36, SL8 Fixed Sights & Optic Rail HK G36, SL8 Fixed Sights & Optic Rail

    HK G36, SL8 Fixed Sights & Optic Rail

    USA

    $199.95
    HK SL8, G36 Sight Rail With Front & Rear Fixed Sights  US made SL8 & G36 Picatinny rail with fixed iron sights. Each rail requires 3 hardware sets to mount.   Compatible With: HK SL8, HK Sl8-1 G36, G36K, G36C
    HKP-19717
    $199.95
    Qty in Cart: 0
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    $199.95
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  • HK German Leather Sling HK German Leather Sling

    HK German Leather Sling

    H&K Heckler & Koch

    $99.95
    German HK Leather 2 point sling - New Comes with HK sling hook. Complete and new condition. Made with leather straps and steel hardware and HK sling hook. Compatible With: HK91 G3 PTR91 & CETMEHK93 33 53HK94 MP5HK clones or other custom...
    HKP-20485
    $99.95
    Qty in Cart: 0
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  • HK UMP & G36 Pistol Grip Storage Insert HK UMP & G36 Pistol Grip Storage Insert

    HK UMP & G36 Pistol Grip Storage Insert

    USA

    $16.95
    HK UMP & G36 Pistol Grip Storage Insert G36 & UMP pistol grip insert for all G36 & UMP lower housings. This is the piece that locks into place and fits in the bottom of the handle itself. This is a perfect storage location for paperwork,...
    HKP-20176
    $16.95
    Qty in Cart: 0
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    $16.95
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  • Out Of Stock
    HKP 416 10.4" 5.56 Complete Upper Receiver Assembly HKP 416 10.4" 5.56 Complete Upper Receiver Assembly

    HKP 416 10.4" 5.56 Complete Upper Receiver Assembly

    HKP HK Parts

    $2,485.95
    HKP 416 10.4" 5.56 Complete Upper Kit Complete Each kit includes the complete upper assembly, bolt group, tungsten buffer, & high-reliability SS recoil spring. This upper kit is a complete gas piston HK 416 style upper assembly that will drop on your...
    HKP-17662
    $2,485.95
    Qty in Cart: 0
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    $2,485.95
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  • HKP MP5 & HK94 Vented Wide Forearm - Horizontal HKP MP5 & HK94 Vented Wide Forearm - Horizontal

    HKP MP5 & HK94 Vented Wide Forearm - Horizontal

    HKP HK Parts

    $74.95
    HKP MP5 & HK94 Vented Wide Forearm - Horizontal New USA manufactured HK MP5 & HK94 vented wide handguard with The horizontal style vents. This style of venting allows better handling & superior barrel cooling abilities.
    HKP-16855
    $74.95
    Qty in Cart: 0
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    $74.95
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  • HKP MP5 40/10 Magazine Floor Plate HKP MP5 40/10 Magazine Floor Plate

    HKP MP5 40/10 Magazine Floor Plate

    HKP HK Parts

    $9.95
    HKP MP5 40/10 Magazine Floor Plate Great for spare parts and also a much needed US made compliant part for U.S. compliance.
    HKP-16507
    $9.95
    Qty in Cart: 0
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    $9.95
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  • HKP Tactical Rail - 2" - HK91/93 HKP Tactical Rail - 2" - HK91/93

    HKP Tactical Rail - 2" - HK91/93

    HKP HK Parts

    $16.95
    HKP Tactical Rail - 2 Inch The six mounting screws are also included with each rail. This rail will fit on either the left or right side or the bottom of the PTR and HK91/93 tactical handguards. Up to three rails can be used on each forearm. Compatible...
    HKP-02527
    $16.95
    Qty in Cart: 0
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  • Out Of Stock
    PTR HK G3/91 (7.62x51/.308) GI Barrel - Threaded 5/8x24 PTR HK G3/91 (7.62x51/.308) GI Barrel - Threaded 5/8x24

    PTR HK G3/91 (7.62x51/.308) GI Barrel - Threaded 5/8x24

    PTR

    $214.95
    PTR HK G3/91 (7.62x51/.308) GI Barrel - Threaded 5/8x24 New PTR91 US made G.I. spec 18" barrel. Perfect for any barrel threaded 5/8x24. New production perfect for new builds. This part counts as one US made compliant part. Specifications: Overall Lenght...
    HKP-18435
    $214.95
    Qty in Cart: 0
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    $214.95
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  • Strike Industries HK MP5K Dual Folding Stabilizer with Adapter Strike Industries HK MP5K Dual Folding Stabilizer with Adapter

    Strike Industries HK MP5K Dual Folding Stabilizer with Adapter

    Strike Industries / HKP

    $319.95 - $339.95
    Strike Industries Dual Folding Stabilizer with HKP MP5K Adapter The Strike Dual Folding Stabilizer paired with our MP5K picatinny adapter is one of the best options on the market for those looking for weight reduction and a compact configuration...
    HKP-21386-M
    $319.95 - $339.95
    Qty in Cart: 0
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    $319.95 - $339.95
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  • Angstadt Arms 3-Lug Quick Detach 9mm Blast Shield Angstadt Arms 3-Lug Quick Detach 9mm Blast Shield

    Angstadt Arms 3-Lug Quick Detach 9mm Blast Shield

    Angstadt Arms

    $99.95
    Angstadt Arms, Blastwave, Blast Diverter, 9MM, 3 Lug Attachment Ideal for close quarters environments or shooting in teams, the Blastwave 3-Lug 9mm QD Blast Shield reduces concussive forces on the shooter and those nearby by redirecting the blast...
    HKP-19983
    $99.95
    Qty in Cart: 0
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    $99.95
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  • H&K 91/G3/MSG90 (7.62x51/.308) 5 Round Magazine - Steel - Used H&K 91/G3/MSG90 (7.62x51/.308) 5 Round Magazine - Steel - Used

    H&K 91/G3/MSG90 (7.62x51/.308) 5 Round Magazine - Steel - Used

    H&K Heckler & Koch

    $59.95
    German 5 Round Steel Magazine - G3, 91, CETME .308 - Like New Compatible With: HK G3, 91, PTR HK CETME, Clone or other custom builds HK PSG-1 HK MSG-90 HK 11
    HKP-18924
    $59.95
    Qty in Cart: 0
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    $59.95
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