HK MP5/K & SP5/K Small Parts
Find every small part you need for your HK MP5 build or repair. Our selection includes pins, springs, detents, and other essential components from HK and trusted aftermarket suppliers.
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HKP Quick Detach Sling Attachment Sling Pin - Small
HKP HK Parts
$37.95The small push pin is used to retain the forearm to the receiver on the 90 series of firearms. The QD sling pin is a great replacement item as it will allow the user to simply swap the push pin for the sling pin to allow a sling mounting location for a...HKP-18071$37.95 -
H&K Magazine Catch, Push Button Roll Pin
H&K Heckler & Koch
$4.95H&K Magazine Catch, Push Button Roll Pin New HK German-made. The mag catch roll pin is used to attach the magazine catch to the mag release button. Compatible with: HK G3, 91, PTR HK MP5, 94, SP5 HK 93, 33, 53 HK SP89, MP5K,...HKP-01918$4.95 -
RCM MP5 & MP5K 9mm Extractor
RCM
$29.95Made from ordnance grade steel and heat treated. These are the latest F Type Extractor for all HK MP5/94 bolt heads. Perfect to get that out of spec clone or worn out HK bolt working as it should. These are simply the finest US made extractors available...HKP-20959$29.95 -
HKP MP5 A3 Retractable Stock Buffer
HKP HK Parts
$6.74MP5 A3 Retractable Stock "H" Buffer For All HK A3 Retractable StocksThe A3 stock buffer is a high wear and common replacement items that does need to be replaced when they become torn, cracked, brittle, discolored & worn. These units are made from...HKP-18160$6.74 -
H&K Full Auto Paddle Magazine Release Bushing - New
H&K Heckler & Koch
$6.95H&K Full Auto Paddle Magazine Release Bushing - New New HK German paddle magazine release bushing for all 90 series H&K weapon systems. Used for installing a paddle mag release. Please Note: This is NOT for use on semi-auto HK builds. This...HKP-00847$6.95 -
HKP MP5 & MP5K 9mm Anti-Rattle Roller Tipped "Paddle" Magazine Release
HKP HK Parts
$29.47HK MP5, MP5K 9mm Anti-Rattle Roller Tipped "Paddle" Magazine ReleaseFactory German HK CORRECT latest generation Paddle mag release for all 9mm MP5, MP5K style builds. This offering is the latest generation MIM'ed paddle magazine release. Made to the...HKP-17570$29.47 -
HKP MP5, MP5K, 94 & SP89 Firing Pin-Steel
HKP HK Parts
$17.47MP5, MP5K, 94, & SP89 Firing Pin - Steel Each part is made using the factory HK material and specifications from original HK German blueprints. Compatible with: MP5, HK94 MP5K, SP89, SP5K MP5 40, 10mm, .357 Sig Zenith, POF, Omega, DT,...HKP-02115$17.47 -
H&K 90 Series Sear & Trigger Axle
H&K Heckler & Koch
$1.99HK Sear & Trigger Axle For 90 Series- Used Surplus ConditionHK German used sear and trigger axle for the 90 series style of trigger packs. Each axle pin or pivot pin measures .197 inches (5.0mm). A great spare and must have spare part for anyone...HKP-15459$1.99 -
H&K MP5 & HK94 Firing Pin Spring
H&K Heckler & Koch
$9.95HK German MP5 & HK94 Firing Pin Spring Fits all of the MP5, SP5, SP5K, MP5K 9mm & 40/10 Variants including MP5, 94 clones.The firing pin is one of the most common repair and replacement items. Compatible with: MP5 SP5 SP5K MP5K 9mm & 40/10...HKP-00062$9.95 -
HKP 90 Series Sear
HKP HK Parts
$47.95HK USA-Made Sear, Catch-Billeted Machined Steel Hard to find and important for keeping your HK build 922R compliant. This US-made sear counts as one US-compliant part for your rifle or build. Machined from a bar of solid ordnance grade steel, with the...HKP-00378$47.95 -
HKP MP5 Sling Clip for Magwell
HKP HK Parts
$9.95This is the factory correct sling clip that attaches to the left hand side of the magwell.Note: 3 rivets are needed to attach - sold separatelyÂHKP-18313$9.95 -
PTR Trigger - 90 Series - Billeted - USA
PTR
$45.95PTR Trigger - 90 Series - Billeted - USA Made by PTR for the US market by a name that is known for quality, you know it is the best offering available. It will fit all 0,1, and SEF-style trigger packs. Each part counts as one US-made compliant...HKP-00380$45.95 -
DTAC 90 Series Semi Auto Shelf Weldment - Billeted
DTAC Dakota Tactical
$29.95DTAC Spec Billeted Semi Auto Shelf For C/P'ed Trigger Group -Dakota TacticalThe needed receiver shelf that is welded to the magwell of the receiver to allow the use of clipped & pinned trigger housings. These are as made to DTAC's custom specs...HKP-18072$29.95 -
H&K HK SEF & Navy 3 Position Trigger Spring
H&K Heckler & Koch
$4.95HK 90 Series SEF & Navy Style Trigger Return Spring For HK 90 series 91, 94, 93, etc. (semi or full-auto). This item will fit any NON-burst trigger pack. Compatible with: MP5, MP5K, SP89, & SP5K HK G3, HK91, PTR HK 93, 33, HK33K, &...HKP-01092$4.95 -
Out Of Stock
H&K Barrel Retaining Pin - 5.15mm
H&K Heckler & Koch
$0.00H&K Barrel Retaining Pin - 5.15mm This is the barrel pin used for installing a new or replacement barrel. HK suggests using a new factory barrel pin when installing or reinstalling an HK barrel in the trunion. Each pin is slightly oversized for...HKP-01662$0.00 -
H&K MP5, HK94, MP5K, SP89 & SP5K Firing Pin
H&K Heckler & Koch
$39.95H&K MP5, HK94, MP5K, SP89 & SP5K Firing Pin - German Fits All HK 9mm & .40/10 MP5 Variants. Compatible with: MP5 HK94 MP5K SP89 SP5KHKP-00061$39.95 -
H&K 90 Series Hammer Axle For Trigger Pack
H&K Heckler & Koch
$2.77HK German used hammer axle for the 90 series style of trigger packs. Each axle pin or pivot pin measures .237 inches (6.0mm). A great spare and must have spare part for anyone that owns an HK 90 series of firearm or trigger packs.Fits any of the...HKP-15444$2.77 -
H&K Roller Retainer Plate For Rollers
H&K Heckler & Koch
$25.95New HK German Roller Retainer Plate For Rollers This item is a common wear item that is great to have on hand as they are one of the top items that break or fail with use and age of the service weapon. Compatible with: MP5, 94 MP5K, SP89 HKG3, 91,...HKP-00065$25.95 -
H&K MP5, G3, PTR, HK93 Push Button For Magazine Catch
H&K Heckler & Koch
$8.95Push Button For Magazine Catch Compatible with: G3 91 MP5 MP5K SP5K 94 93 33 PTR, Clones, ETC.HKP-01833$8.95 -
Out Of Stock
HKP Semi Auto Shelf, Hanger Block For Receiver
HKP HK Parts
$13.95HK Semi Auto Shelf Weldment, Hanger Block Weldment HK Semi Auto Shelf, Hanger Block to HK's factory specifications for c/p trigger housings. Weld on shelf that is the needed receiver block that welds to the rearward portion of the magwell to allow the...HKP-17572$13.95 -
HKP Spare Buffer For Folding Stocks & End Caps
HKP HK Parts
$9.95HKP Spare Buffer For Folding Stocks & End Caps New US manufactured flat style "H"buffer to replace the factory HK buffer on MP5K folding stocks and end caps. As well as a spare or replacement buffer for the MP5 & MP5K folding B&T stocks. Made...HKP-17886$9.95 -
H&K Trip Lever- Friction - Used - Surplus
H&K Heckler & Koch
$3.74HK German trip lever for HK F/A or registered sear trigger packs in used Surplus Condition. This is the older friction style trigger pack found on older HK trigger packs and all HK registered sear packs.HKP-17760$3.74 -
HKP MP5/K & 94 Magazine Release Set - German/USA
HKP HK Parts
$94.95HK MP5, MP5K, & 94 Mag Release Set, Complete - German & USA Complete magazine paddle mag release kit that includes everything you need for the the paddle mag release & standard mag release on your HK 9mm rifle or pistol build. All parts are...HKP-17569$94.95 -
Magpul M-Lok MVG Vertical Grip
Magpul
$22.95M-LOK? MVG® VERTICAL GRIP M-LOK SLOT SYSTEMThe M-LOK MVG is a light weight, inexpensive vertical foregrip that attaches directly to M-LOK compatible hand guards and forends with no additional Picatinny rails required. Made from the same high quality...HKP-17321$22.95 -
H&K Full Auto Trigger Pack Elbow Spring With Roller
H&K Heckler & Koch
$4.95Used Good shape. German Full Auto Trigger Pack Elbow Spring W/ Roller. This item is a factory HK German replacement partHKP-16241$4.95 -
Choate MP5 Replacement Buffer For Folding Stock Or End Cap
Choate
$3.95Choate MP5 Replacement Buffer For Folding Stock Or End Cap Compatible With: Choate MP5 and MP5K stocks or end capsHKP-00116$3.95 -
MP5 40/10 Extractor Spring
$9.95HK MP5 40/10 & .357 - Extractor Spring The extractor spring is the most common wear item on an MP5 and a must-have spare and replacement part. HK Germany no longer makes the MP5 40/10 extractor spring, and they are no longer available. Our offering...HKP-00409$9.95 -
H&K German Recoil Guide Rod Rivet-Used
H&K Heckler & Koch
$0.48This is used on all G3, 91, 33, 93, 53, MP5, 94, MP5K, SP89 & HK21 Variants. This rivet holds the stop pin and recoil spring captive and in place to the recoil rod itself.HKP-16985$0.48 -
H&K Magazine Catch - MP5, MP5K - Latest Style
H&K Heckler & Koch
$54.95H&K Magazine Catch - Latest Style Genuine HK mag release for factory and clone firearms. This component often resolves issues with mags not locking into position on HK clones and builds. Constructed from a single piece of steel unlike the...HKP-00911$54.95 -
HKP Semi Elbow Spring For Trigger Pack - Match Grade
HKP HK Parts
$3.74Match Grade Semi Auto Spacer Elbow Spring - USAManufactured using the best isolated oil tempered, select spring steel available for match grade performance and the utmost longevity. For use on all HK semi auto trigger packs. A must have for those...HKP-18002$3.74 -
HKP Roller +9 - New - 8.09mm
HKP HK Parts
$8.99Roller +9 - New - 8.09mmHK Parts Standard (8.09 mm) locking roller, The proper roller size is essential for proper bolt gap. US Manufacture.Price is per roller.**You need to order two for a complete set (pair) for bolt head.**HKP-19438$8.99 -
H&K Small Push Pin Replacement Spring
H&K Heckler & Koch
$1.95Replacement Spring for HK style push pin - Small A must have replacement item to have on hand. A quick and easy install spring to get your push pins back to working condition. A great replacement for those worn out springs that come loose while in...HKP-20368$1.95 -
RCM MP5 9mm Trunion
RCM
$74.95RCM MP5 9mm Trunion US made to exact factory HK specifications and machined completely from ordnance grade steel and heat treated to factory specs. Compatible with: MP5, 94 MP5K SP89 Clones or other custom buildsHKP-01193$74.95 -
H&K Friction Sear For SEF, Navy Trigger Packs
H&K Heckler & Koch
$8.95New HK German Friction Sear for SEF & Navy trigger packs. This item is also referred to as the catch with roller but more commonly called a sear.HKP-16198$8.95 -
H&K MP5K/SP89/SP5K 9mm Recoil Spring
H&K Heckler & Koch
$11.95HK German MP5K, SP89 Recoil Rod Assembly Spring This is a great replacement and spare part.HKP-01159$11.95 -
H&K Grip Screw & Washer
H&K Heckler & Koch
$1.49HK German Grip Screw & Washer For G3, HK91, HK93, HK94 & SP89 & Other HK metal framed lowers with plastic grip. This is a surplus factory HK German part that is now out of production. Great to have as a spare and the cheapest price on the...HKP-16335$1.49 -
H&K Ambidextrous Sling Pin For Forearm - Small
H&K Heckler & Koch
$64.95HK 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$64.95 -
HKP MP5, MP5K, 94 & SP89 Firing Pin-Titanium
HKP HK Parts
$49.95Grade 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 last a lifetime or two. Simply the strongest,...HKP-17601$49.95 -
H&K German Recoil Guide Rod Rivet-New
H&K Heckler & Koch
$4.95H&K German Recoil Guide Rod Rivet -New This rivet holds the stop pin and recoil spring captive and in place to the recoil rod itself. The price is per rivet. New old stock HK German rivet. Compatible with: G3, 91, 33, 93, & 53 MP5,...HKP-01026$4.95 -
HKP SP5K 9mm Drop In Paddle Mag Release Upgrade Kit
HKP HK Parts
$74.95HK SP5K Anti-Rattle Roller Tipped "Paddle" Magazine Release Install Kit No modifications, no refinishing...complete drop-in kit included. New USA made busing for a drop-in install kit for the HK SP5K. This kit will allow any end-user to quickly,...HKP-18192$74.95