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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HKP Cocking Handle Spring
HKP HK Parts
$3.95HKP Cocking Handle Spring The cocking handle spring is a medium wear component and should be replaced intermittently. Grab a spare to keep with your maintenance gear in case of failure in the field too. Compatible With: HK G3, 91, PTR91 HK...HKP-02465$3.95 -
PTR HK MP5 Flat Receiver w/ Weldment Set
PTR
$294.95MP5 9mm Receiver Flat With Complete Weldment & Rivet Set - PTR/LSC Several years ago PTR bought out LSC and now owns the tooling and dyes for the LSC 9mm flats. These elusive flats have been hard to find and are now available for the first time here...HKP-19509$294.95 -
H&K HK 30 Round MP5/SP5 & MP5K/SP5K 9mm Magazine - Tungsten
H&K Heckler & Koch
$99.95New German - H&K MP5, SP5, SP5K, MP5K 9mm - 30 Round Curved Magazine - Tungsten Heckler & Koch factory fresh magazine from this current year's production. 9mm 30 Round curved all-steel magazine stamped "Made In Germany". These are the...HKP-19977$99.95 -
H&K MP5SD Sealing Ring
H&K Heckler & Koch
$19.95H&K MP5SD Sealing Ring Each HK MP5SD sealing ring is the sealing gasket that seals the SD suppressor against the trunnion on factory HK MP5SD's or factory correct SD conversions. This is a typical wear item as they do degrade and crack. Compatible...HKP-00142$19.95 -
HKP HK UMP (.40 S&W/.45 ACP/9mm) Lower Locking Pin
HKP HK Parts
$12.95HK UMP Lower Locking Pin, Push Pin For use with all HK UMP lowers & USC to UMP conversions. Made in the USA. This is the pin that holds the lower to the receiver. Compatible With: UMP USC Conversions TBT builds Omega Other builds that...HKP-18580$12.95 -
HKP Rear Sight Retainer or Clamping Screw
H&K Heckler & Koch
$4.95HK German Rear Sight Retainer / Clamping ScrewHKP-00868$4.95 -
Comp-Tac HK MP5 9mm Single Magazine Pouch
Comp-Tac
$44.95Comp-Tac HK MP5 9mm Single Magazine Pouch The single magazine pouch PLM is an all Kydex magazine pouch which gives a smooth friction free surface perfect for a quick reload for your HK MP5. The PLM mount allows for being securely hooked on a variety of...HKP-20099$44.95 -
PTR HK Mil-Spec AR Stock Adapter & Buffer Tube
PTR
$124.95PTR HK Mil-Spec AR Stock Adapter & Buffer Tube AR15 to HK 90 series stock adapter for AR15 stocks that includes the mil-spec buffer tube and castle nut to use any mil-spec AR15/M16 stock of your choice on your HK rifle or SBR build. With the adapter...HKP-16583$124.95 -
SL8, G36 Bolt Hold Open Lever - Extended - HKP
USA
$59.95SL8 & G36 Extended Bolt Hold Open Lever New SL8, G36, HK243 bolt hold open lever. A must have upgrade for your HK SL8, Sl8-G36 conversion or G36 firearm. The bolt hold open lever is a drop in replacement and requires zero gunsmithing or alterations...HKP-18775$59.95 -
H&K 91/G3 (7.62x51/.308) Vinyl Magazine Pouch - Surplus
H&K Heckler & Koch
$4.95Green Vinyl Plastic Double HKG3 Rubberized Magazine Pouch - Surplus This mag pouch is German military surplus, and it is compatible with all HK G3, 91, and PTR Style 20-round mags.HKP-01941$4.95 -
H&K MP5, 93/53, G3 (9mm, 5.56/.223, 7.62/.308) 3 Position (S,U,O Pictogram) Contract Housing - USED
H&K Heckler & Koch
$29.95H&K MP5, 93/53, G3 (9mm, 5.56/.223, 7.62/.308) 3 Position (S,U,O Pictogram) Contract Housing - USED Enhance your H&K firearm with this authentic contract housing, featuring a 3-position pictogram (S, U, O) for versatile fire control...HKP-19912$29.95 -
HKP HK MP5, SP5 Handguard - OD Green
HKP HK Parts
$39.95HKP HK MP5, SP5 Handguard - OD Green New USA MP5 O.D green handguard is also known as the tropical wide forearm. Now you can further customize your MP5/ SP5 with this new color grip and, best of all, it counts as 1 U.S complaint part for the 922r. This...HKP-20593$39.95 -
HKP/H&K MP5/MP5K 9mm Muzzle Brake - 3-Lug
HKP HK Parts
$109.95HKP/H&K MP5/MP5K 9mm Muzzle Brake - 3-Lug Easily attaches to the end of any factory specification 9mm 3 lugged barrel. This muzzle brake doesn't require the of threads as it attached to the 3 lug tip. Also a great addition for any of 3 lug barrels...HKP-20323$109.95 -
Zenith 30 Round HK MP5 Magazine
Zenith
$48.95Zenith 30 Round HK MP5 Magazine Features: Cerakote finish - Many colors to choose from All steel construction Round count indicator holes on the rear of the magazine Stainless steel follower Reinforced feed lips High-tensile compression...HKP-20832-M$48.95 -
Cartridge Case Deflector, Shell Deflector - MP5, MP5K - Billet
HKP HK Parts
$14.95Cartridge Case Deflector, Shell Deflector - MP5, MP5K - Billet New US made case deflector for receiver flat or receiver for all MP5, HK94, MP5K, & SP89 builds. The case deflector is riveted or welded in place on the ejection port of the 9mm receiver...HKP-17574$14.95 -
H&K Full Auto Trigger Pack Elbow Spring With Roller
H&K Heckler & Koch
$4.95H&K Full Auto Trigger Pack Elbow Spring With Roller Used- Good shape. This item is a factory HK German replacement part.HKP-16241$4.95 -
Bore Boss Pull-Through Bore Cleaner - 9mm MP5, SP5K
Bore Boss
$10.95Real Avid Bore Boss Pull-Through Bore Cleaner - 9mm 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 with...HKP-19398$10.95 -
H&K 91/G3 (7.62x51/.308) Ejector Lever
H&K Heckler & Koch
$24.95New H&K .308 Ejector Lever Genuine HK German part. Compatible With: HK G3 HK 91 PTR-91 HK 51HKP-00832$24.95 -
H&K Roller Type Trip Lever
H&K Heckler & Koch
$29.95H&K Roller Type Trip Lever This is a genuine German Heckler & Koch part. This is the newer style trip lever for use with a roller sear catch, not the older friction type. Please Note: May or may not be marked with the X or XX...HKP-02466$29.95 -
Magpul 9mm Subgun Mag Assist - 3 Pack
Magpul
$9.95ORIGINAL MAGPUL® 9MM SUBGUN - 3 PACK When installed on the base of a submachine-gun magazine, the original Magpul provides improved speed and control during high stress, tactical magazine changes. Durable synthetic rubber loop with recessed rough...HKP-17310$9.95 -
H&K HK 30 Round MP5/SP5 & MP5K/SP5K 9mm Magazine - FDE
H&K Heckler & Koch
$99.95New German - H&K MP5, SP5, SP5K, MP5K 9mm - 30 Round Curved Magazine - FDE Heckler & Koch factory fresh magazine from this current year's production. 9mm 30 Round curved all-steel magazine stamped "Made In Germany". These are the finest...HKP-19974$99.95 -
Magpul M-LOK 5 Slot Rail Section
Magpul
$18.95Magpul M-LOK 5 Slot Rail Section Designed for use with all M-LOK compatible Hand Guards and Forends, M-LOK Aluminum Rail Sections allow the attachment of various 1913 Picatinny spec rail-mounted accessories such as lights, vertical grips, etc. Machined...HKP-19568$18.95 -
FMP - G3 Parts Kit - With Mags
HKP HK Parts
$290.00FMP - G3 Parts Kit - With Mags The G3 has been an iconic battle rifle utilized all over the world and revered as one of the best that H&K has offered. You now have the opportunity to build one of these iconic battle rifles. Licensed by H&K and...HKP-20865$290.00 -
H&K G3/91 (7.62x51/.308) SEF Polymer Housing - USED - Clipped & Pinned
H&K Heckler & Koch
$79.95H&K G3/91 (7.62x51/.308) SEF Polymer Housing - USED - Clipped & Pinned This Germa made Heckler & Koch G3 surplus grip housing comes in black polymer clipped & pinned, ready to drop on your HK 91, HK G3, PTR-91, or other HK .308 type...HKP-00722$79.95 -
H&K HK MR556/MR762/416/417/G36/SL8 Complete Gas Piston
H&K Heckler & Koch
$50.95HK MR556, MR762, 416, 417, G36, & SL8 Complete Gas Piston New HK German gas piston assembly with three locking piston rings installed. This is a great spare part to have on hand, as the gas piston takes a lot of wear and tear. Compatible With: HK...HKP-00047$50.95 -
KCI 30 Round B&T APC 9mm Magazine - Translucent
KCI
$44.95Korean 30 Round B&T APC 9mm Magazine - KCI USA Features: Brand new factory fresh, individually sealed magazine 30 round capacity 9mm caliber Great for plinking & range sessions Affordable Made in South Korea For the money this magazine is the...HKP-20293$44.95 -
H&K Ambidextrous Sling Pin For Forearm - Small
H&K Heckler & Koch
$66.95HK German Ambidextrous Small Sling Pin For Forearm This ambidextrous pin will allow the user to attach a sling hook to the sling pin. This will also allow the user to use the sling on either the left or right side.HKP-00077$66.95 -
HKP HK MP5 .22 Bench Mat
HKP HK Parts
$24.95HK MP5 .22 Bench Mat The HK MP5 .22 bench mat is the perfect cleaning & repair mat designed specifically for your HK MP5 .22 models. Have fun and learn while you work on your favorite H&K firearm. The soft top protects your gun from scratches...HKP-17280$24.95 -
H&K 91/G3 (7.62x51/.308) Backplate & Recoil Rod Assembly Complete
H&K Heckler & Koch
$24.95H&K 91/G3 (7.62x51 / .308) Backplate & Recoil Rod Assembly Complete Used- Surplus- in good shape. Each backplate comes in the parkerized finished as issued to the German military complete and 100% serviceable. Ready to install. This is also a...HKP-16144$24.95 -
HKP HK 416/MR556 A5 Style Castle Nut-Extended
HKP HK Parts
$39.95HK 416, MR556 A5 Style Extended Length Castle Nut Unlike the factory German A5 castle, our A5 extended buffer tube castle nut is compatible with both mil-spec & commercial buffer tubes. Crafted from ordnance grade steel and nitrided for a...HKP-18058$39.95 -
HKP MP5, MP5K, 94 & SP89 Firing Pin-Titanium
HKP HK Parts
$49.95HKP MP5, MP5K, 94 & SP89 Firing Pin-Titanium Grade 6 Titanium firing pin. Each was made using the factory HK specifications from original HK German blueprints. This is the finest US made Titanium firing pin available anywhere, at any price. Built to...HKP-17601$49.95 -
B&T MP5, MP5K Low Profile Mount, Extended T1/T2
B&T Brugger & Thomet
$159.95B&T MP5, MP5K Low Profile Mount, Extended T1/T2 Specifications: Color: Black Height max: 23.5 mm Length max: 138 mm Length of top rail: 138 mm Material: Aluminum NATO Accessory Rails: 1 weaver type style rail Part number: BT-21241 Treatment:...HKP-16876$159.95 -
H&K 91/G3 (7.62x51/.308) Firing Pin - Used
H&K Heckler & Koch
$6.95H&K 91/G3 (7.62x51/.308) Firing Pin - Used Great for spares as this is a common wear item. Compatible With: HK G3 & HK 91, PTR or clone riflesHKP-16710$6.95 -
HKP Roller +3 - New - 8.03mm
H&K Heckler & Koch
$8.99Roller +3 - New - 8.03mm HK Parts Standard (8.03 mm) locking roller, The proper roller size is essential for proper bolt gap. US Manufacture. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to...HKP-19425$8.99 -
PTR (5.56/.223) & (7.62x51/.308) Bird Cage Flash Hider - Threaded 15x1 RH
PTR
$19.95PTR (5.56/.223) & (7.62x51/.308) Bird Cage Flash Hider - Threaded 15x1 RH Crafted to exacting HK specifications, our new flash hider is manufactured in the USA by PTR 91. This component delivers unparalleled performance and value. Featuring the...HKP-01447$19.95 -
H&K German Rear Sight Spring
H&K Heckler & Koch
$4.95H&K German Rear Sight Spring HK German rear sight spring for rear diopter sights.HKP-00146$4.95 -
Shooting Sight HK MP5, HK 91/93/94, HK G3 & Clones Heckfire 2-Stage Trigger
$399.95Heckfire trigger for MP-5, HK 91/93/94, G3, Clones 2-stage trigger with around 5lb total pull. Drop-in to all lowers. The updated selector levers work for all lowers (you no longer need to tell us if it is an SEF or an AMBI lower) and they cover...HKP-20173$399.95 -
AIM (.45 ACP) Laser Bore Sighter
AIM
$19.95AIM (.45 ACP) Laser Bore Sighter Red Laser Bore Sight-.45 Laser bore sight system. Each unit comes complete with batteries (4)and instructions for operation. Easy to use and priced so that every shooter can have one for each caliber of firearm that they...HKP-16217$19.95 -
H&K 91/G3 (7.62x51/.308) Mag Release Set
H&K Heckler & Koch
$34.95HK .308 Magazine Release Set (Left to Right) This magazine catch set consists of 4 pieces and is HK-manufactured. Compatible With: HK .308 rifles HK G3 HK 91 PTR-91 HK 91 Clones or Variants Includes: Magazine Catch Magazine Catch Spring Push...HKP-00929$34.95 -
H&K MP5 9mm SEF Navy Style Trigger Housing - Clipped & Pinned - USED
H&K Heckler & Koch
$89.95H&K MP5 9mm SEF Navy Style Trigger Housing - Clipped & Pinned - USED In used but good condition. Each German HK housing will have some handling marks, nicks and dings. Each housing is in perfectly useable condition and each unit has been clipped...HKP-19787$89.95