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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On Sale
GG&G Picatinny to Harris Bipod Adapter
GG&G
Now: $14.95Was: $39.95Harris Bipod Adapter Made By GG&G Enables a Harris Bi-pod to attach to a mil-spec Picatinny rail. GG&G's AR-15 Harris Bipod Adapter is rugged and low profile. Features of the GG&G Bipod Adapter include a stationary standard swivel stud, a...HKP-02307Now: $14.95Was: $39.95 -
GSG9 HK SP5 US Rear Stock w/ HK Parts Adapter
GSG9, HKP HK Parts
$259.95GSG9 US Rear Stock with HK Parts Adapter - SP5 GSG9 US folding stock with a SP5 HK Parts Adapter. The HK Parts adapter is made from a solid billet of CNC machined aircraft grade aluminum and offers a QD attachment point. Finished in black Cerakote. This...HKP-20662$259.95 -
Out Of Stock
H&K 21E/23E (7.62x51/.308) & (5.56/.223) Complete Recoil Rod Assembly
H&K Heckler & Koch
$0.00HK 21E, 23E Recoil Rod Assembly Complete Great item to have on hand as this is a high wear and replacement item. Compatible With: HK 21E HK 23E MM23E MM21E Other custom builds or clonesHKP-00570$0.00 -
H&K 23E/13E/G43 (7.62x51/.308) & (5.56/.223) Extractor
H&K Heckler & Koch
$119.95HK23E & HK13E Extractor New HK German and no longer in production. Compatible With: MM 23E HK 13EHKP-00818$119.95 -
H&K 91/G3 (7.62x51/.308) Sniper Trigger Group - Match Trigger
H&K Heckler & Koch
$749.95HK German SEMI .308 Trigger Group Complete For G3, 91 & PTR Models Each match trigger group comes with a custom trigger conversion to a light smooth light trigger pull. The Trigger group has been adjusted and enhanced by the famed & renowned HK...HKP-17031$749.95 -
H&K 93/53/33 (5.56/.223) Surplus Fixed Stock - A2 - Jungle Green
H&K Heckler & Koch
$122.95Surplus - Fixed Stock - Jungle Green - HK93,33,53 Hand-picked stocks in excellent condition. Comes with matching buttpad. Ready to install on your HK or clone rifle. German military surplus, but handpicked to give you the best of the offerings...HKP-18887$122.95 -
H&K 93/91/33/53/G3 (5.56/.223) & (7.62x51/.308) Bolt Locking Lever Axle Pin
H&K Heckler & Koch
$9.95HK Bolt Carrier Bolt Locking Lever Axle Pin - G3, 91, PTR & HK93, 33, 53 Brand new HK German bolt locking lever axle pin or cylinder pin for HK locking levers. Compatible With: G3, 91, PTR HK 93, 33, 53 HK21, 23, 11, 13 PSG1, MSG90HKP-17624$9.95 -
H&K G36/SL8 (5.56/.223) Bolt Group Fork
H&K Heckler & Koch
$12.95HK G36 & SL8 Bolt Group Fork For Cocking HandleHKP-01859$12.95 -
H&K G36/SL8 (5.56/.223) Firing Pin Retaining Pin
H&K Heckler & Koch
$10.95H&K G36/SL8 (5.56/.223) Firing Pin Retaining Pin Compatible With: HK G36 HK SL8HKP-02469$10.95 -
H&K HK 416 Ejector Retaining Pin
H&K Heckler & Koch
$6.95HK 416 Ejector Retaining Pin This factory HK German part is the pin that holds the ejector in place on the bolt head. Great to have as a spare part.HKP-00053$6.95 -
H&K HK G36, HK SL8 Magazine Paddle Release
H&K Heckler & Koch
$29.95HK G36 & SL8 Magazine Paddle Release Compatible With: HK SL8 HK G36 HK G36K HK G36CHKP-02152$29.95 -
H&K HK MP7 A2 Parts Kit
H&K Heckler & Koch
$20,595.00HK MP7 A2 Parts Kit - German HK Available for the first time ever! Get your hands on an updated HK German MP7 A2 parts kit. Each demilled kit is factory original, unfired, and ships in the factory packaging with manuals. Perfect for a...HKP-20050$20,595.00 -
Out Of Stock
H&K HK MR556/416 Steel Maritime Magazine Follower
H&K Heckler & Koch
$14.95H&K HK MR556/416 Steel Maritime Magazine Follower Compatible With: HK 416 factory magazines such as 30, 20 and 10 roundHKP-15452$14.95 -
H&K HK MR762/417 Magazine Catch Retainer Ring
H&K Heckler & Koch
$10.95H&K HK MR762/417 Magazine Catch Retainer RingHKP-16521$10.95 -
Out Of Stock
H&K HK MR762/417/G28 Gas Block
H&K Heckler & Koch
$199.95HK German MR762 Gas Block New German HK manufacture for the HK MR762 & HK417, G28 firearm. This unit comes without the sling loops installed.HKP-17259$199.95 -
H&K HK UMP 30 Round .40 Magazine - LEO Marked
H&K Heckler & Koch
$79.9530 Round Magazine - LEO Marked - Used - UMP .40 S/W Each 30 round magazine will fit all HK UMP .40 caliber carbines, SMG's as well as the USC-UMP .40 caliber conversions. Used in good condition. The perfect option for those that like to collect LEO...HKP-20651$79.95 -
H&K HK USP Control Decock Only V4 Safety Lever
H&K Heckler & Koch
$57.95H&K HK USP Control Decock Only V4 Safety Lever Lever for left-handers to have the de-cocker (no safety) function. The control lever fits on the right side of the frame. Compatible With: HK USP 9mm HK USP 40 S&W HK USP 45 ACPHKP-01417$57.95 -
H&K HK33 Pistol Parts Kit w/ Flat & Weldment Set
H&K Heckler & Koch
$1,988.95HK 33 pistol Build Kit Complete German & US Parts- Limited Supply! Heckler & Koch German-manufactured parts kit issued to the Malaysian Army. Demilled and prepared per BATF specifications. These are the last parts kits available we are told there...HKP-19731$1,988.95 -
H&K MP5 40/10 -4 Roller
H&K Heckler & Koch
$19.95HK German MP5 40/10 -4 roller Hard to find and essential for making headspace adjustments when necessary. Great spare to have on hand and no longer in production. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for...HKP-00337$19.95 -
H&K MP5/SP5K Rear Sight Set Complete-Used
H&K Heckler & Koch
$109.95HK German MP5 & HK94 Rear Sight Set Complete - Used Taken from demilled MP5's. Includes the entire rear sight assembly and hardware set for the complete rear sight assembly. In some cases, we have replaced the rear sight drum with a brand-new German...HKP-00671$109.95 -
Out Of Stock
H&K MP5K 9mm 3 Position (S,E,3F Pictogram) Burst Trigger Housing - Push Pin - RARE
H&K Heckler & Koch
$0.00H&K MP5K 9mm 3 Position (S,E,3F Pictogram) Burst Trigger Housing - Push Pin - RARE This rare HK MP5K SE3F marked ambidextrous push pin trigger features a 3 position pictogram (S,E,3F) Safe, Semi, and 3-Round Burst. With only a few available in the...HKP-02015$0.00 -
H&K PSG1 Stock Rear Spacer Tube
H&K Heckler & Koch
$27.95H&K PSG1 Stock Rear Spacer Tube This is the longer of the two bars that goes towards the rear of the stock. No longer in production.HKP-16986$27.95 -
H&K UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) 3 Position Selector Lever - Right
H&K Heckler & Koch
$19.95HK UMP & G36 Right Safety Selector Lever For All 3 Position Lowers OnlyHKP-01888$19.95 -
HK G36/SL8/USC/UMP Rear Sight Screw
H&K Heckler & Koch
$19.95HK G36, SL8 & USC, UMP Rear Sight Screw Rear sight screw to retain HK G38/Sl8 & USC/UMP rear sights housings to the rear sight base. Compatible With: G36, SL8 USC, UMPHKP-16382$19.95 -
Out Of Stock
HK G36C/G36K Gas Piston
USA
$49.95HK G36C/G36K Gas Piston New Tom Bostic US Made G36C & G36K Gas Piston. Counts as one US made compliant part for your SL8 - G36C or G36K style conversion. This is one of the best parts to use on the conversion as it is one of the cheapest ways to get...HKP-17277$49.95 -
HK94 Clone Original Vented Barrel Shroud w/ Grip
E&L MFG
$139.95HK94 Clone Original Vented Barrel Shroud w/ Grip This is the OEM HK part. The vertical grip is detachable and will not fit heavier barrels such as Vector or MKE barrels. Please Note: This will NOT fit 3 lug barrels.HKP-00020$139.95 -
HKP (5.56/.223) A5 Flash Hider - Threaded 1/2x28
HKP HK Parts
$59.95HKP (5.56/.223) HK 416C A5 Flash Hider - Threaded 1/2x28 Made from ordnance grade steel, heat treated, and Melonited (Nitride process) for maximum longevity. Machined correctly to reduce tuning fork noise for a more pleasant time at the range. This is...HKP-21342$59.95 -
On Sale
HKP AR-15 Low Profile Gas Block
HKP HK Parts
Now: $14.95Was: $29.95AR15, M4 Billeted Low Profile Gas Block - Stainless Steel Made to strict military specifications. These high quality components will provide excellent fit and reliable function in your AR series platforms. These AR-Stoner parts are perfect for upgrading...HKP-18088Now: $14.95Was: $29.95 -
HKP HK 23E/13E (7.62x51/.308) & (5.56/.223) Firing Pin - Titanium
HKP HK Parts
$49.95HK23E, MM23E, 13E Firing Pin - Titanium Grade 6 weapons grade titanium manufacture. Made in the USA. A must have upgrade to have on hand as the firing pin is one of the most abused components in the HK weapon system. Get the lightest, strongest firing...HKP-17770$49.95 -
HKP HK 416 11.5" 5.56 Complete Upper Receiver Assembly
HKP HK Parts
$2,485.95HKP HK 416 11.5" 5.56 Complete Upper Kit Complete HKP 416 style complete upper assembly. This top-tier assembly seamlessly fits onto your mil-spec lower or a STS 416 lower, providing the perfect solution for those seeking an 11.5" 416 style upper without...HKP-21539$2,485.95 -
HKP HK G36C Barrel - Black
HKP HK Parts
$499.95HKP HK G36C Barrel - Black Brand new HK G36C barrel made from 416 stainless steel and nitrided, uninstalled & unfired. The G36C barrel uses a factory German or USA spec G36K/G36C gas block. Counts as one USA made complaint part. Perfect for the...HKP-18195$499.95 -
HKP HK MP5 9mm Bolt Carrier - Red
HKP HK Parts
$189.95Bolt Carrier F/A - 9mm - HK Red - MP5 Machined completely from billet ordnance steel. This carrier is made to the latest specs and is Tungsten filled, and heat-treated providing the finest American made carrier available. This carrier has been...HKP-19535$189.95 -
Out Of Stock
HKP HK MR556/416 M-LOK 9" Handguard - Black
HKP HK Parts
$199.95HK MR556 & HK416 9" M-LOK ForearmWeight: 10.2 ozMADE IN THE USA AND BILLET MACHINED. MUCH LIGHTER THAN THE HK FACTORY FOREARM OFFERINGS.HKP-17981$199.95 -
HKP MP5 10mm Reverse Stretch Parts Kit
HK Parts, Heckler & Koch
$2,099.95MP5 10mm Reverse Stretch Pistol Build Kit Complete German & USA Made Parts ON SALE WHILE SUPPLIES LAST! MP5 10mm Reverse Stretch parts kit complete with all the parts needed for an MP5 10mm semi-auto pistol. Each kit comes with all 6 of the needed US...HKP-19818$2,099.95 -
HKP MP5SD 9mm Cocking Tube - For Lefties
HKP HK Parts
$99.95MP5SD Cocking Tube - US Made - For Left Handed Shooters HK German MP5SD spec cocking tube for use on MP5SD style builds or custom SD builds. These are the finest MP5SD cocking tube ever offered. Each unit is made from the original factory HK prints...HKP-18918$99.95 -
JMAC Customs Extended BDS-37 Blast Diversion Shield - Bravo with HD 3-Lug Adapter
JMAC Customs
$239.95JMAC Customs Extended BDS-37 Blast Diversion Shield - Bravo with HD 3-Lug Adapter The YHM-2050 HD (heavy duty) 3-Lug adapter is a quick-attach mounting option designed to provide added strength and longevity to your 3-Lug equipped firearm. This fully...HKP-20520$239.95 -
On Sale
KES CZ Scorpion Evo Tailhook
Safety Harbor Firearms
Now: $149.95Was: $249.95KES CZ Scorpion Evo Tailhook Specifications: Aluminum 6061 type 3 hard coat black anodized: main body and butt Steel, black oxide: guide rod and button Q.D. mount on both sides Adds only 3.25" in. to the rear of the receiver when closed Newer...HKP-21090Now: $149.95Was: $249.95 -
On Sale
Lee Sporting HK MP5 Complete Trigger Group
Lee Sporting
Now: $499.95Was: $549.95Lee Sporting Complete Trigger Group - MP5 C/P 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 Tactical Other clones that...HKP-20465Now: $499.95Was: $549.95 -
Magpul HK MP5K - MOE PR Stock
Magpul
$195.89Magpul Industries - MOE PR MP5K Stock New MOE PR MP5K stock fully assembled with our own MP5K AR stock/brace adapter. MOE PR stock blends the simplicity of the legacy MOE Carbine Stock with design lines reminiscent of the PRS Lite now coupled with our...HKP-21197$195.89 -
PWS Keymod Bipod Adapter for Harris Style Bipods
PWS Primary Weapon Systems
$21.95Keymod Bipod Adapter for Harris Style Bipods The Harris Style Bipod Mount is quick to install and easy to use. Fits snug to your KeyMod or PicMod handguard and ensures a stronghold on your Harris Bipod.HKP-19272$21.95