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 MR762/417/G28 Handguard Rail System Screw - Black
H&K Heckler & Koch
$16.95HK MR762, HK 417 Factory Handguard Rail Screw Each MR762 takes and uses 2 retaining screws for the handguard. New HK German manufacture. Compatible With: HK MR762 HK 417 HK G28HKP-16601$16.95 -
H&K MP5 & HK94 SEF Navy Style Trigger Group Semi-Auto Clipped & Pinned
H&K Heckler & Koch
$499.95HK German MP5, 94 SEF Navy Style Semi-Auto Clipped & Pinned Trigger Group Complete Ready to drop on your semi-auto HK 9mm HK Or Clone firearm or upper receiver. Perfect for barreled upper offerings such as the Omega line. Each trigger group is...HKP-01179$499.95 -
H&K MP5 40/10 30 Round Magazine Spring
H&K Heckler & Koch
$9.95H&K MP5 40/10 30 Round Magazine Spring New HK German MP5 40/10 magazine spring for the 30 round magazine. Hard to find and a must have repair and replacement item.HKP-01056$9.95 -
H&K SL8 (5.56/.223) Adjusting Dual and Single Optic Screw
H&K Heckler & Koch
$14.95HK SL8 Dual and Single Adjusting Optic ScrewHKP-16387$14.95 -
H&K UMP/USC (.40 S&W/.45 ACP/9mm) Cocking Handle Pin
H&K Heckler & Koch
$7.95HK UMP & USC Cocking Handle Pin Compatible With: HK UMP HK USCHKP-01885$7.95 -
HK 416 10.4" Upper Gas Block - German
$279.95HK German 10.4" Upper Gas Block Complete New HK German manufacture. This is the ONLY 10.4" gas block available from HK Germany. Compatible With: HK 416 10.4" uppers HK MR556 to 10.4" conversions Please Note: This unit is NOT a vented gas block.HKP-01543$279.95 -
Out Of Stock
HK MR556, 416 & AR15, M4 Stock - PDWC - Extended Buttpad
HKP HK Parts
$0.00HK 416C Style With Extended Buttpad - PDW Stock For AR15, MR556, HK416 & M4 Models The first PDW style stock that does NOT require a proprietary bolt carrier or special components. A true drop-in PDW stock solution for your HK 416C or AR/M4 PDW...HKP-17800$0.00 -
HK UMP (.40 S&W/.45 ACP/9mm) Gunsmithing Bench Mat
HKP HK Parts
$24.95HK UMP, USC Bench Mat, Gunsmithing Mat Our HK USC & UMP bench mat is the perfect cleaning & repair mat designed specifically for your Heckler & Koch models. Have fun and learn while you work on your favorite H&K firearm. The soft top...hkp-17617$24.95 -
HKP HK MP5 Picatinny Rail Stock Adapter
HKP HK Parts
$134.95HKP HK MP5 Picatinny Rail Stock Adapter Our rail stock adapter allows you to attach any 1913 Style Stock or brace to your MP5. The 1913 style stocks & braces lock in place and provide a better cheek weld hieght option than many traditional stock...HKP-21426$134.95 -
On Sale
HKP HK Push Pin Navy Binary Trigger Group - Engraved - RAL 8K - BLEMISHED
FA Franklin Armory / HKP
Now: $799.95Was: $1,499.95Franklin Armory BFSIII HK-C1 – Trigger Group - RAL 8K HK Push Pin Navy PLEASE NOTE: SOLD AS-IS DUE TO THE PICTOGRAM PAINT BEING BLEMISHED - SEE PHOTOS. 3 Position Navy style Engraved Pictograph – HK Binary Trigger Group Our latest...HKP-21292-BNow: $799.95Was: $1,499.95 -
On Sale
HKP HK33 11" RH Cocking Tube
HKP HK Parts
Now: $74.95Was: $99.95HKP HK33 11" Right Hand Cocking Tube This is the one and only right handed cocking tube for the HK33 cocking tube made in the US. Made to the exact HK specifications as the factory HK33 German cocking tube. Overall length is 11".HKP-18692Now: $74.95Was: $99.95 -
HKP MP5 10mm Pistol Build Kit
HKP HK Parts
$2,299.95MP5 10mm Build Kit With Flat, Top Rail & Weldment Set HK Parts MP5 Build Kit is the best priced value available anywhere. There is a limited supply and they will be gone before you know it. The MP5 10mm parts kit comes complete with all the parts...HKP-18409$2,299.95 -
MFI HK 93/33 (5.56/.223) Low Profile Scope Rail Extended - 8.5 inch
MFI
$189.95MFI 8.5 Inch Mounting Rail For HK 93, 33, Style Receivers The MFI extended scope rail is a quick and easy solution to add a Picatinny top rail to your HK receiver without modifications. The low-profile rail does not impede the iron sights. The rail uses...HKP-01829$189.95 -
PTR Locking Piece HK MP5, HK SP5 , HK MP5K, HK SP5K - 100 Degree
PTR
$39.95PTR Locking Piece HK MP5, HK SP5 , HK MP5K, HK SP5K - 100 Degree This PTR 100 degree locking piece is a great replacement for your worn out locking piece or to replace the 110 degree locking piece from a MP5K. The MP5 100 degree locking piece is the...HKP-20342$39.95 -
PTR Tactical, Keymod & M-LOK, Retainer Handguard Screw
PTR
$4.95PTR Tactical, Keymod & M-LOK, Retainer Handguard Screw This is the screw that is used on all the Tactical, Keymod, and M-LOK forearms (MP5K, MP5, HK93, HK91). A great spare to have in case the original screw gets lost.HKP-16743$4.95 -
On Sale
RCM HK 53 Locking Piece #15 - 65 Degree
RCM
Now: $49.95Was: $74.95RCM HK 53 Locking Piece #15 - 65 Degree The #15 LP is the correct locking piece for the HK53 and several other custom-build applications. The locking piece is the timing mechanism that a delayed roller lock firearm uses to tell...HKP-02524Now: $49.95Was: $74.95 -
SureFire SOCOM (7.62x51/.308) Muzzle Brake - Threaded 5/8x24
Surefire
$164.95SureFire SOCOM (7.62x51/.308) Muzzle Brake - Threaded 5/8x24 The SureFire muzzle brake is designed for Armalite AR-10, DPMS LR308, and other 7.62 mm rifles with 5/8x24 muzzle threads. It greatly reduces recoil impulse and muzzle rise, featuring neutral...HKP-19789$164.95 -
FMP HK G3 (7.62x51/.308) Parts Kit (HK Contract)
FMP
$397.95HK Contract Portuguese FMP G3 .308/7.62 X 51mm Surplus Parts Kit Each parts kit comes complete with all parts from a functional HK G3 full auto rifle that was demilled into a parts kit with the exception of the barrel and receiver. As per BATFE import...HKP-17694$397.95 -
H&K HK G36C Complete Rear Stock Assembly - Black
H&K Heckler & Koch
$199.95HK G36C Rear Stock Assembly Complete - German Genuine German Heckler & Koch G36C rear stock assembly. One full inch shorter than the standard G36 stock. This is the preferred stock for average-height users. Compatible With: G36 G36K G36C G36E SL8 to...HKP-00626$199.95 -
H&K HK SL8/G36 Gas Piston Rod Spring Assembly
H&K Heckler & Koch
$69.95HK German G36 & SL8 Gas Piston Rod Spring Assembly Great for spare parts or to use on that HK SL8-G36 conversion. This is a high-wear item and a must-have spare part. Compatible With: SL8-6, SL8-1 G36E, G36 full sizeHKP-02000$69.95 -
H&K HK UMP & HK USC Extended Top Rail For Optics with Screws
H&K Heckler & Koch
$99.95H&K HK UMP & HK USC Extended Top Rail For Optics with Screws This rail is nearly an 1" longer than the standard length top rail. This Picatinny top rail allows the user to add an Eotech, Aimpoint, Acog, etc. This unit is the best quality &...HKP-20502$99.95 -
H&K MP5 40/10 Bolt Hold Open Lever
H&K Heckler & Koch
$74.95MP5 40, MP5 10 Bolt Hold Open Lever - German HK - New A great upgrade for the out-of-spec and sub-par quality part found on clone builds. Compatible With: MP5 40 MP5 10mm MP5 .357 Sig MP5 9 X 25 DillonHKP-01471$74.95 -
H&K MP5/MP5K 3-Lug Blank Firing Adapter
H&K Heckler & Koch
$139.95H&K MP5/MP5K 3-Lug Blank Firing Adapter This part attaches to the end of the 3-lug barrel tip and will allow the use of 9mm blanks for training. A brand new HK German manufactured part. Specifications: 3-Lug Blank Firing Adapter Compatible...HKP-01990$139.95 -
Out Of Stock
HK 91/G3 (7.62x51/.308) Cocking Tube - Lefties
$79.95HK91, G3, PTR Full Size Cocking Tube - For Lefties This is the one and only left handed cocking tube for the HK G3 & HK 91 Full Size and it happens to be a US manufactured part. Hard to find. Perfect for the custom project or HK91, HKG3 build.HKP-18925$79.95 -
$79.95 -
HKP 90 Series F1 Flat Trigger - Skeletonized
HKP HK Parts
$59.95HKP 90 Series F1 Flat Trigger - Skeletonized The HK Parts Skeletonized F1 flat 90 series trigger is expertly engineered for exceptional performance and reliability. It fits all 0, 1, SEF, and Navy style trigger packs effortlessly. Machined from...HKP-21580$59.95 -
HKP HK 93/53/33 (5.56/.223) Firing Pin - Stainless Steel
HKP HK Parts
$24.95HKP HK 93/53/33 (5.56/.223) Firing Pin - Stainless Steel Specifications: Made in the USA Made from stainless steel Compatible With: HK 93/53/33HKP-17798$24.95 -
On Sale
HKP HK P30SK Stand Off Device - Black
HKP HK Parts
Now: $78.95Was: $109.95HKP HK P30SK Stand Off Device - Black The P30SK stand-off device is a worst-case-scenario accessory that prevents the slide from being pushed back on the frame (thereby disengaging the trigger). The ulimate component for close quarters...HKP-19191Now: $78.95Was: $109.95 -
Out Of Stock
HKP MP5SD 9mm Barrel - Threaded 18x1
HKP HK Parts
$169.95HKP MP5SD 9mm Barrel - Threaded 18x1 Made in the USA from 416 stainless steel, this high-quality barrel undergoes the highly desirable nitride process for a super hard, durable finish. Precision milled to the latest specifications, it features...HKP-17755$169.95 -
JMAC Universal M-LOK Skeleton Forward Grip
JMAC Customs
$89.95JMAC Universal M-LOK Skeleton Forward Grip Can be used as a forward grip or a handstop! Features: Reversible and Lightweight M-LOK Compatible (Requires 2 slots) Fits in and across M-LOK Slots Includes mounting hardware 7075 T6 Aluminum Hard Coat...HKP-21240$89.95 -
KDG HK MR762, HK 417, HK G28 Ambidextrous Magazine Release - Black
KDG Kinetic Development Group
$169.95Magazine Release - Ambi - HK MR762, 417, G28 The HK 762 Ambi (Ambidextrous) Magazine Release. This is the first ambidextrous magazine release for the HK 417 variant rifles. The mag release is a lever instead of a button; where the release has been...HKP-19204$169.95 -
Magpul HK G3 / HK 91 PRS Gen 3 Stock
Magpul
$429.95Magpul HK G3 / HK 91 PRS Gen 3 Stock - Available in Multiple Color Options The PRS GEN3 is a field precision stock for AR15/M16 and AR10/SR25 platforms, featuring tool-less length of pull and cheek piece height adjustment. With solid adjustments...HKP-21172-M$429.95 -
MI HK93/33 M-LOK Handguard - Black
MI Midwest Industries
$175.95MI HK93/33 M-LOK Handguard - Black Brand new Midwest Industries M-LOK handguard for your HK93, HK33, G3K or similar clone. This is also the correct forearm to use on PTR models that use a shorter 9" length or carbine length forearm. Features: Made in...HKP-18440$175.95 -
Omega HK UMP .45 ACP Barrel - 3-Lug
OMEGA
$449.95Omega HK UMP .45 ACP Barrel - 3-Lug This is the newest barrel for the UMP to hit the market that will come with a removable 3-lug adapter. The 3-lug adapter will be the same spec as the MP5 3 lug, making your UMP more versatile when it comes down to...HKP-21070$449.95 -
Talon Grip HK Navy Style Lower Pistol Grip Granulate - Black
Talon Grip
$19.99Talon Grip HK Navy Style Lower Pistol Grip Granulate - Black TALON grips are textured, stick-on gun grips that help you get a secure hold on your firearm improving performance, safety, and confidence so you maintain control. Installation is quick and...HKP-20230$19.99 -
Out Of Stock
B&T HK G36/SL8 Quad Rail Handguard - Black
B&T Brugger & Thomet
$379.95B&T Handguard Quad Rail For HK G36 and SL8 New B&T Swiss manufactured G36 and SL8 quad rail system. Each unit comes with the complete quad rail as well as the rail covers and sling swivel for a sling. Compatible With: HK G36 (Not...HKP-16897$379.95 -
B&T USW A1 Complete Folding Stock Assembly - Black
B&T Brugger & Thomet
$162.45B&T USW A1 Complete Folding Stock Assembly Swiss B&T manufactured tactical folding stock assembly. Includes polymer stock and all four hardware pieces as shown. Compatible With: USW-A1 Specifications: Polymer Folding stock 9.75" longHKP-18356$162.45 -
Geissele HK MR762/MR308 Trigger
Geissele
$479.95HK MR 762 Trigger- Geissele The HK MR762 trigger is similar to our SSA with a 4.5 total pull weight. It can be used in both the HK 762 and semi-auto HK 417's. Please note: After installing the MR762 trigger you must cock the hammer in order to engage the...HKP-16463$479.95 -
GSG9 HK G36/SL8 (5.56/.223) Firing Pin
GSG9
$28.95HK G36, G36K, G36C & SL8 Firing Pin - USA A must have spare part for all G36 models. Made in the USA. Fully machined and nitrided for superior strength. Compatible With: G36 G36K G36C SL8HKP-18256$28.95 -
H&K 93/53/33 (5.56/.223) Surplus Fixed Stock - A2 - Dark OD Green
H&K Heckler & Koch
$139.95Surplus - Fixed Stock - Dark OD 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-18889$139.95