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 93/53/33 (5.56 / .223) 30 Round Magazine - Steel
H&K Heckler & Koch
$80.00HK93, HK33, & HK53 - 30 Round Magazine HK Factory German. All-steel latest production magazine and hard to find. This magazine was discontinued in 2021 and is no longer in production. Stock up as we have the last remaining units available...HKP-00484$80.00 -
H&K Cocking Tube Hanger Clip
H&K Heckler & Koch
$13.95H&K Cocking Tube Hanger Clip The HK cocking tube support hanger is the part that welds onto the end of the cocking tube that allows the forearm to install with the use of a small push pin. New HK German factory manufactured. Ready to weld onto your...HKP-00349$13.95 -
H&K 91/G3 (7.62x51 / .308) Extractor
H&K Heckler & Koch
$13.95HK German HK G3, HK, 91 & PTR 91 .308 Extractor New HK German. The G3 is out of production and this small lot of new old stock extractors is available at the best price in the country. Fits all models of HK G3 style firearms and CETME's. Compatible...HKP-00495$13.95 -
HKP 1st Gen Roller Retainer Plate To Spring Upgrade
HKP HK Parts
$9.95HKP 1st Gen Roller Retainer Plate To Spring Upgrade This action 3 roller retainer spring for all 1st Generation bolt heads replaces the oval-shaped roller retainer plate. HK made a wire spring as an upgrade for later production bolt heads to improve the...HKP-02119$9.95 -
HKP MP5K to SD Shroud
HKP HK Parts
$119.95MP5K SD Shroud For SP89 & MP5K Conversion A great offering for those who want to build a custom MP5K SD model. Made in the USA.HKP-00849$119.95 -
HKP Roller +8 - New - 8.08mm
HKP HK Parts
$8.99Roller +8 - New - 8.08mmHK Parts Standard (8.08 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-19437$8.99 -
B&T MP5 Folding Stock
B&T Brugger & Thomet
$319.95B&T Folding Stock For All MP5 Full Size Variants Swiss-made B&T folding stock for the MP5 & HK94. This is a military-grade stock as supplied by B&T to HK Germany. B&T Switzerland has supplied these to law enforcement and...HKP-00460$319.95 -
H&K +2 Roller For Bolt Head 8.02mm - Over-sized
H&K Heckler & Koch
$24.95H&K +2 Roller For Bolt Head 8.02mm - Over-sized New HK standard (8.02 mm) locking roller. The proper roller size is essential for a proper bolt gap. New HK German, not surplus or used out-of-spec part. Please note: The price listed is per roller...HKP-00507$24.95 -
H&K MP5 & MP5K F Style Roller Retainer Plate - 3rd Gen
H&K Heckler & Koch
$14.95HK German "F" Style 3rd Gen Roller Retainer Plate This is the latest and greatest German design of roller retainer plates found in all of the latest production of HK German bolt heads. The MP5 F roller retainer plate fits true F-style bolt heads only...HKP-00069$14.95 -
H&K Magazine Catch Spring
H&K Heckler & Koch
$4.95H&K Magazine Catch Spring New HK German manufacture, not used, worn out surplus springs. Perfect spare and a must-have mag catch spring for all 90 series rifles that use a detachable magazine. Compatible with: HK 91, G3 &...HKP-01917$4.95 -
HK UMP/USC (.40 S&W/.45 ACP/9mm) Recoil Buffer
$11.95HK USC & UMP Recoil BufferReplaceable Spare Lower Housing Or Buffer For Buffer Housings. This Is A High Wear & Replacement Item And A Must Have For Spare Parts. Fits ALL UMP & USC Lowers. HK USC .45 HK UMP modelsHKP-18746$11.95 -
H&K HK MR556/416 Gas Block Roll Pin
H&K Heckler & Koch
$7.95HK 416 & MR556 Gas Block PinThis is the retaining pin for an HK 416 gas block. A must have as HK says you have to use new pins once they are removed.5 x 18 mmHKP-02534$7.95 -
HKP Vertical Grip - Picatinny Mount - Short
HKP HK Parts
$29.95Stubby Vertical Grip For Picatinny Rail- HK Style This grip is by far the nicest shorter style or stubby grip we have encountered for the money. This rock solid grip is a must have for anyone that uses a vertical grip. This is the only vertical grip out...HKP-16409$29.95 -
Maglula Universal Magazine Loader
Maglula
$34.95This loader we feel is the finest loader available for the wide variety of the HK pistol magazines. Will also work with Glock, Sig, XD, and most other pistol magazines. A must have for every shooter. Makes all reloads faster and easier on the...HKP-14531$34.95 -
Out Of Stock
H&K MP5K/SP89/SP5K 9mm HK Marked Folding Stock
H&K Heckler & Koch
$399.95HK Marked MP5K, SP5K, SP89 & MP5K-N, PDW Folding Stock This is the original "HK" logo marked HK factory stock, found on all HK German MP5K's or PDW's. Each stock is marked HK and uses the HK German backplate/buffer factory assembly. Overall Length is...HKP-00391$399.95 -
Out Of Stock
HKP Paddle Style Extended Mag Release - EMR
HKP HK Parts
$44.95HKP Paddle Style Extended Mag Release - EMR A great addition to any paddle style mag release, such as those found on an HK. The extended mag release is machined from a solid billet of aircraft grade aluminum and hard anodized aluminum for a lightweight...HKP-17079$44.95 -
H&K 91/G3 (7.62x51 / .308) Rear Sight Assembly - New
H&K Heckler & Koch
$39.95HK German G3, 91, PTR Rear Sight Assembly Complete - New HKHK German factory rear sight assembly with all hardware included. We offer the finest new HK sights at the BEST price in the country. Each set comes complete with all parts and all mounting...HKP-18163$39.95 -
On Sale
Magpul AR-15 PMAG 30-Round 5.56 / .223 Magazine
Magpul
Now: $8.95Was: $14.95Magpul Original Equipment (MOE) is a line of firearm accessories designed to provide a high-quality, economical alternative to standard weapon parts. The MOE line distinguishes itself with a simplified feature set, but maintains Magpul engineering and...HKP-14559Now: $8.95Was: $14.95 -
Out Of Stock
H&K 9mm Barrel Flute Cleaning Brush
H&K Heckler & Koch
$0.00This HK manufactured brush is a must have for the proper care of your HK 9mm Rifle/Pistol as the flutes need to be clean and free of carbon for proper function. A must have cleaning tool to have on hand and to save time and money. Take care of gear and...HKP-00138$0.00 -
H&K MP5 & MP5K Style Firing Pin Spring
H&K Heckler & Koch
$26.95H&K MP5 & MP5K Style Firing Pin Spring The latest style of firing pin available is stronger and much more durable than the standard non-braided firing pin. Compatible with: MP5, HK94, SP5 MP5K, SP5K, SP89 MP5/40, MP5 10mm, MP5...HKP-00063$26.95 -
HKP MP5, MP5K Front Sight Tower Assembly
HKP HK Parts
$54.95New US made from a solid billet of ordnance grade steel. Each front sight tower, triple frame set comes complete with a new HK diopter style replaceable front sight post & roll pin. This is the complete set made to the highest tolerances. No ugly...HKP-17792$54.95 -
HKP Roller +6 - New - 8.06mm
HKP HK Parts
$8.99Roller +6 - New - 8.06mmHK Parts Standard (8.06 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-19439$8.99 -
H&K UMP/USC (.40 S&W/.45 ACP/9mm) Rear Stock Axle Pin - Swiss
Swiss
$14.95Swiss made UMP stock axle pin. This Is The Rear Stock Pin That Allows You Attach The Stock To Either The Factory Receiver Of A UMP or For Those That Are Doing The USC to UMP Conversion. This Is Required To Attach The Stock To The Needed Stock Block...HKP-02591$14.95 -
H&K UMP (.45 ACP) 25 Round Magazine
H&K Heckler & Koch
$95.95New HK German Non-LE/Mil Marked UMP .45 ACP 25 Round Magazine The UMP .45 magazines will fit all UMP factory firearms as well as the USC's that have been converted to accept UMP magazines. Compatible with: HK UMP .45 HK USC to UMP . 45 conversions HK...HKP-00605$95.95 -
HKP Binary Selector Lever Set Screw
HKP HK Parts
$1.98This replacement screw is to mount your Franklin Armory BFS selectors. A great spare screw to replace damaged screws or lost screws as they are small in dimension and very easy to misplace. A must have set screw to keep your Binary trigger group going...HKP-20686$1.98 -
HK, Walther, Colt, .22LR Barrel Adapter O-Ring
USA
$2.95HK, Walther, Umarex 416, Colt M4 or MP5-A5 .22 Barrel Adapter O-Ring.Made from the highest quality & very durable Viton material. The O-ring on the adapter can tear with use or become brittle over time. Be sure to grab a few extra rings with your...HKP-17379$2.95 -
Zenith 30 Round HK MP5, MP5K 9mm Magazine - Bundle of 5
Zenith
$184.9530 Round Magazine - Zenith - MP5, MP5K - Â Bundle of 5 Each 9mm MP5, SP5 & Mp5K, SP5K magazine features the following: Durable electro-plated black finish for exceptional corrosion resistance Compatible with ZF-5, ZF-5P, ZF-5K, MP5, SP5, HK94,...HKP-20672$184.95 -
HKP Quick Detach Sling Attachment Sling Pin - Large
HKP HK Parts
$37.95The large stock push pin is used to retain the stock 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 pushpin for the sling pin to allow a sling mounting location for...HKP-18070$37.95 -
HKP Roller +2 - New - 8.02mm
HKP HK Parts
$8.99Roller +2 - New - 8.02mm HK Parts Standard (8.02 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-19423$8.99 -
Out Of Stock
H&K MP5 A3 Retractable Stock Buffer
H&K Heckler & Koch
$27.95H&K MP5 A3 Retractable Stock Buffer These are common wear items and need to be replaced when they become yellow, brittle, and worn. A list of things to look for when the buffer needs to be replaced: discoloration of the buffer, the buffer...HKP-00074$27.95 -
H&K HK MR556/416 Enhanced Buffer Spring
H&K Heckler & Koch
$19.95Enhanced HK German MR556/416 Buffer Spring The HK MR556/416 buffer spring will also work with other AR-15 and M-16 rifles. This is the finest AR15 style buffer spring available. A high wear item and a must have replacement part. Compatible With: HK...HKP-00039$19.95 -
AC-Unity HK Cheek Piece - Black
AC-Unity Magazines and Parts
$39.95HK Cheek PieceNew production HK cheek piece for your fixed stock on your G3, HK91, PTR91, HK33, HK94, MP5 or HK94 rifle.Works on all HK style fixed stocks that have push pin retainer bushings in the stock. This will give you the proper cheek weld that...HKP-20153$39.95 -
H&K HK MP5 & HK MP5K 9mm Dual German Magazine Clamp Bundle
H&K Heckler & Koch
$279.95HK German MP5 & SP5 Or MP5K & SP5K 9mm Mag Clamp Bundle Allows the user to clamp 2 X MP5 9mm 30 round magazines together for ease of use & safety by keeping 2 magazines usable & at your disposal. A Heckler & Koch German made...HKP-20492$279.95 -
Walther 10 Round HK 416/G36/Colt M4 .22LR Magazine - Black
Walther
$35.00HK, Walther, Colt, Beretta - HK416 .22 - 10 Round Magazine Impact-resistant polymer construction. Thumb-assisted loading button. Heavy-duty spring-steel mag spring. Compatible with: HK 416 .22 Colt M4 .22 Beretta AR160 HK G36 .22 Hammerli Tac .22HKP-01747$35.00 -
H&K +4 Roller For Bolt Head 8.04mm - Over-sized
H&K Heckler & Koch
$14.95H&K +4 Roller For Bolt Head 8.04mm - Over-sized New HK German not surplus or used goods. The correct roller is essential for proper head spacing and the bolt gap. Compatible with: HKG3, 91 & PTR HK93, 33, 53 HK MP5, MP5K Cetme, C308 Clones...HKP-00508$14.95 -
HKP MP5 & MP5K 9mm Contact Piece For Paddle Mag Release
HKP HK Parts
$15.95HK MP5, MP5K 9mm Contact Piece - USAFactory correct US manufactured MP5, MP5K 9mm Contact Piece For Paddle Magazine Release. Each part was made using the same material and manufacturing methods used on the German HK latest production parts. Hard to find...HKP-17403$15.95 -
HKP Roller +4 - New - 8.04mm
HKP HK Parts
$8.99Roller +4 - New - 8.04mmHK Parts Standard (8.04 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-19441$8.99 -
Out Of Stock
AIM HK 91/G3 (7.62x51 / .308) Full Length Handguard - MLOK
AIM
$85.95HK 91 RIFLE LENGTH HANDGUARD- M-LOK This sleek streamlined design is an ultra low profile handguard with generous mounting space to accept all M-Lok accessories. Superior ergonomics and simple, drop-in installation makes this the best HK pattern rail on...HKP-18176$85.95 -
H&K UMP (.40 S&W/.45 ACP/9mm) Safe/Semi Lower - 2 Position
HKP HK Parts
$495.99New HK Parts -UMP Safe, Semi FBI (0,1) Lower Each lower comes complete with 2 position settings (S, F) and all the internals. This item is ideal for the USC to UMP conversion or to keep as a spare. Compatible with: UMP .45 UMP .40 UMP 9mm USC...HKP-00590$495.99 -
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