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 Night Vision Manual- Z51 Zeiss/Fero
HKP HK Parts
$20.95HKP Night Vision Manual- Z51 Zeiss/Fero Fero, Zeiss Z-51 English translated operators manual. This is the manual for the recently imported German night vision scope for the MG3 Machinegun, G3 Rifle, and Pazerbusche 84. This is a page-by-page translation...HKP-15224$20.95 -
HKP PTR HK91 / PTR-91 Bolt Head Complete
HKP HK Parts
$179.95HKP PTR HK91 / PTR-91 Bolt Head Complete New PTR bolt head complete with extractor, extractor spring, roller retainer plate, pair of 8mm rollers. Ready to drop in to replace your worn out bolt head. Bolt head counts as 1 US made compliance part for the...HKP-20140$179.95 -
JMAC Customs 360 1/2-28 Facemount KeyMount (KeyMicro)
JMAC Customs
$104.95JMAC Customs 360 1/2-28 Facemount KeyMount (KeyMicro) With the advancement of suppressor technology and the popularity of the KeyMount mounting system, the 360-28F was designed to allow users to install a KeyMount compatible muzzle device on their...HKP-20141$104.95 -
KDG HK MR556 13.75" M-LOK Rail System - FDE
KDG Kinetic Development Group
$399.95Rail System - 13.75" - Brown - M-LOK - HK MR556 The New KDG HK 556 M-LOK rails are direct mount rail system, replacing the factory HK 556 rail systems. These new rails are identical in design to their big brother, the KDG HK 762 M-LOK Rail system. Like...HKP-19243$399.95 -
Out Of Stock
Kinetic Development Group Sidelok Aimpoint Micro Mount - HK logo
KDG Kinetic Development Group
$138.95Kinetic Development Group Sidelok Aimpoint Micro Mount - HK logo The Sidelok is a revolutionary new mounting system for optics. The patented cam system locks the mount down onto Picatinny without the need of tools, side levers, or huge knobs. The release...HKP-19065$138.95 -
Magpul HK 91/G3 & 33/93 (7.62x51/.308) PRS Extended Butt Pad
Magpul
$15.95Magpul HK 91/G3 (7.62x51/.308) PRS Extended Butt Pad Replaces standard butt pad and adds 1/2" to the overall length of the PRS stock. This part also adds slightly more cushion as there is more rubber material. Compatible With: HK91 &...HKP-00843$15.95 -
Magpul HK MP5, HK94, HK93 MOE SL-K Stock - Black
Magpul
$189.95Magpul HK MP5, HK94, HK93 MOE SL-K Stock - Black Magpul MOE SL-K MP5 ,HK 94, HK93 complete stock ready to drop in. Great option for those looking for different length options. Sleek and perfectly designed. The SL-K is designed for compact PDW style...HKP-20490$189.95 -
Magpul HK MP5K Adapter Brace with Stock
Magpul
$199.95Magpul HK MP5K Adapter Brace with Stock MP5K DT Magpul stock ready to drop in on any in-spec MP5K receiver or clone. We take our AR MP5K Adapter and attach it onto a mil-spec buffer tube. We then drop it on to the new Magpul DT Carbine stock. This is a...HKP-21412-M$199.95 -
On Sale
Magpul MOE Stock - Commercial Spec, AR15/M4 Carbines
Magpul
Now: $39.95Was: $54.95Magpul MOE (Magpul Original Equipment) Commercial-Spec Model for AR15/M4 Carbines Made in the USA, the MOE stock Commercial-Spec Model is a drop-in replacement buttstock for AR15/M4 carbines using commercial-spec-sized receiver extension tubes. The...HKP-10629Now: $39.95Was: $54.95 -
MFI (5.56/.223) G28 Style Flash Hider - Threaded 1/2x28
MFI
$79.95MFI (5.56/.223) G28 Style Flash Hider - Threaded 1/2x28 The G28 2nd Gen flash hider features the latest style and is threaded 1/2x28. Constructed from ordnance-grade steel, it is finished with a semi-matte, mil-spec black oxide coating for enhanced...HKP-17941$79.95 -
Out Of StockOn Sale
MI HK MP5/K, SP5/K Scope Mount Picatinny Rail - USED - BLEMISHED
MI Midwest Industries
Now: $59.95Was: $80.95MI HK MP5/K, SP5/K Scope Mount Picatinny Rail - USED - BLEMISHED USED. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Features: Easy no gunsmith install, all...HKP-19368-BNow: $59.95Was: $80.95 -
MM HK 23E (5.56/.223) Saw Feed Box Adapter
Michaels Machines
$299.95Saw Box (M249) Adapter For HK23E Or MM23E Belt FedsHKP-02072$299.95 -
Out Of Stock
MM HK MSG90 (7.62x51/.308) Factory Correct T Rail Set
Michaels Machines
$389.95MSG-90 Style Receiver Reinforcement Left & Right Side Rail Set Each set is new in white and an exact reproduction of the factory German HK MSG-90 side receiver rails. These rails have the factory-correct holes for welding and the ejection port...HKP-00567$389.95 -
Out Of Stock
MM HK UMP 9mm Conversion Kit - 16 inch Barrel
Michaels Machines
$889.95HK UMP 9mm Conversion Kit - US-Made UMP/USC conversion kit will convert existing USC-UMP conversions to 9mm. This is a simple drop-in conversion for those who have already done the USC-UMP conversion. The conversion parts are drop-in, with the...HKP-02284$889.95 -
Out Of Stock
MP5K Semi Only 4 Position Trigger Group Complete - Clipped & Pinned
H&K Heckler & Koch
$999.95MP5K Semi Only 4 Position Trigger Group Complete With Safe, Semi functions only but provides the look and feel of the four position (0,1,3, F) housing. New HK German. Compatible With: HK MP5K/SP89 9mmHKP-00185$999.95 -
PTR HK G3/91 Tapered Barrel - Threaded 5/8x24
PTR
$229.95PTR HK G3/91 Tapered Barrel - Threaded 5/8x24 PTR manufactured US made barrel for the HK91, G3 & PTR style of firearms. This 16" barrel will allow you to add a threaded flash hider that is threaded 5/8x24 US threads. Specifications: Overall Length...HKP-19472$229.95 -
On Sale
PTR PDW (7.62x39) 9 inch Barrel
PTR
Now: $99.95Was: $149.95PTR PDW 7.62X39 Pistol or SBR Barrel- USA PTR Industries manufactured PTR PDW Barrel. As a bonus, each barrel counts as one US-made part for 922r compliance. Comes new in the white, never installed, and ready for an HK project. Features: 7.62 X 39mm...HKP-14530Now: $99.95Was: $149.95 -
RCM Schneider PSG-1 Barrel
RCM
$849.95RCM Schneider PSG-1 Barrel Only the finest blanks in the industry can produce the best results on the range. Schneider Barrel Company makes that blank. This barrel will work perfectly with standard G3/91 trunnions, G3 barrel extensions, or...HKP-21193$849.95 -
Set of 5 .45 ACP Dummy Rounds
Strike Industries
$8.95Set of 5 .45 ACP Dummy Rounds Strike Industries dummy rounds will let you safely test the feeding, extraction, and magazine function of your firearms without the worry of accidental discharge. They also let you dry fire without risking damage to the...HKP-17384$8.95 -
On Sale
Sig Sauer SIG MCX Low Profile Handguard - Black
Sig Sauer
Now: $77.95Was: $129.95Sig Sauer SIG MCX Low Profile Handguard - Black Features: Black 8.15 in Low Profile KeyMod AluminumHKP-18802Now: $77.95Was: $129.95 -
SL Magpul Housing Service
Magpul
$49.95 - $129.95SL Magpul Housing Service Our SL Magpul Housing conversion service can be preformed to convert a MP5 style magpul housing into a MP5K style housing. We can also convert them to be compatible with the push pin style receivers like a Factory HK MP5,...HKP-20614-M$49.95 - $129.95 -
Strike Industries HK MP5K Drop-In MOD2 Stock
Strike Industries
$199.95Strike Industries HK MP5K Drop-In MOD2 Stock We pair our MP5K AR stock adpter with this Strike MOD2 stock to give you a drop-in MP5K stock. Give your build a modern look and added comfort and adjustability of the MOD2 stock. Only available here at...HKP-21330-M$199.95 -
Surefire Infrared Filter For Lighted Forearms
Surefire
$64.95Surefire Infrared Filter For Lighted ForearmsHKP-16992$64.95 -
On Sale
TPM - Flash Hider .22 Cal - Titanium - Black
Tactical Precision MFG
Now: $64.95Was: $92.99TPM - Flash Hider .22 Cal - Titanium - Black This titanium tri-port muzzle brake reduces recoil, muzzle rise and hides the flash. Dust does not kick up due to three offset front ports. Full automatic capable. Less than 1" of rise with a 30 round 5.56 mag...HKP-20779Now: $64.95Was: $92.99 -
On Sale
TPM Tikka T3 Bolt Handle Upgrade
Tactical Precision MFG
Now: $44.95Was: $69.99TPM Tikka T3 Bolt Handle Upgrade Designed for exact Tikka specs. Tikka T3 upgraded bolt handle is 17-4 stainless steel for optimal strength and durability. This upgraded bolt handle was designed with a 20-degree angle to help improve bolt manipulation...HKP-20901Now: $44.95Was: $69.99 -
USA HK UMP Left Hammer Spring
USA
$9.95USA HK UMP Left Hammer Spring New U.S hammer spring- left side A high wear item that needs to be changed when light firing pin strikes develop on your USC or UMP firearm. Compatible With: HK UMP models 45, .40 & 9mm USC .45 and other...HKP-20840$9.95 -
Out Of Stock
B&T HK 91/G3 (7.62x51/.308) Low Mount Removable Side Rails - Extended
B&T Brugger & Thomet
$289.95B&T HK 91/G3 (7.62x51/.308) Low Mount Removable Side Rails - Extended German long version with removable side rails. First made for the German army, these are in use by many military's and law enforcement agencies. Plenty of length for any scope...HKP-16872$289.95 -
B&T HK MP5K - MBT Stock
B&T Brugger & Thomet
$584.95B&T HK MP5K - MBT Stock B&T MBT folding stock for HK MP5K. Polymer stock and adapter. Features: 8 position length adjustment Telescoping cheek riser w/ 3 position height adjustment Folds to the right canted downward 3.5 degrees Locks...HKP-21421$584.95 -
B&T TP9/MP9 Firing Pin - Black
B&T Brugger & Thomet
$44.95B&T Firing Pin For B&T TP9, MP9 B&T MP9, TP9 firing pin. Original Swiss made Brugger and Thomet production in new condition. Compatible With: TP9 MP9HKP-17297$44.95 -
Ergo 1 1/2" Harris Bipod Slide Mount With Sling Stud
Ergo
$19.95Ergo 1 1/2" Harris Bipod Slide Mount With Sling Stud The ERGO 1.5" Bipod Slide Mount slides onto 1913 Picatinny rail, allowing shooters to mount a variety of rail accessories, including swivels or bipods. Features: Slides onto Picatinny rails and held...HKP-15737$19.95 -
On Sale
Franklin Armory BFSIII AR-S1
FA Franklin Armory
Now: $299.95Was: $429.99Franklin Armory BFSIII AR-S1 The Binary Firing System GEN 3 (BFSIII) is a 3-position trigger. In position 3 it fires one round on pull and one round on release, making it the fastest semi-automatic trigger on the market. This trigger is ideal for both...HKP-19194Now: $299.95Was: $429.99 -
Out Of Stock
H&K HK 416 Vented Gas Block for 14.5"/16" Barrels
H&K Heckler & Koch
$249.95HK German 416, MR556 14.5" & 16.5" & 20" Gas Block Complete This is the factory-correct gas block with the ambi sling attachment points, as well as the bayonet lug milled into the gas block. Perfect for those who want to swap the MR556 gas block...HKP-01544$249.95 -
H&K HK G36, HK SL8, HK 243 Handguard - Black
H&K Heckler & Koch
$399.95HK German Sl8, G36 & HK243 Aluminum Handguard - IDZ New latest production HK G36, SL8 & HK243 forearm. This handguard offering is made entirely out of aluminum. This is the most robust forearm HK makes or that is available. This was designed for...HKP-17708$399.95 -
H&K HK G36C Extended Bottom Rail - Black
H&K Heckler & Koch
$99.95HK German Extended Bottom Rail For Forearm This part provides a full-length mounting rail along the entire bottom of the G36C Forearm. This item is factory HK and comes with all mounting hardware required for the installation.HKP-01648$99.95 -
H&K HK MP5 Navy Style SEF Match Trigger Group
H&K Heckler & Koch
$679.95Navy Style - SEF - Match Trigger Group - HK MP5 Ready to drop on your MP5 receiver. Great replacement for the 2 position ambidextrous trigger group. Includes: Properly clipped & pinned for MP5 spec shelves The finest trigger group for the money with...HKP-19421$679.95 -
H&K HK MP5K Slimline Forearm - Black
H&K Heckler & Koch
$49.95H&K HK MP5K Slimline Forearm - Black Used German military slimline forearm refinished in a black cerakote . Cut down to fit the MP5k. These are rare items only offered here at HK Parts. Each item is in good to excellent shape. Compatible...HKP-20275$49.95 -
Out Of Stock
H&K MP5 40/10 4 Position (0,1,3,F Pictogram) Trigger Housing - Clipped & Pinned
H&K Heckler & Koch
$0.00H&K MP5 40/10 4 Position (0,1,3,F Pictogram) Trigger Housing - Clipped & Pinned This trigger housing features (0,1,3,F) pictogram markings and is specifically designed for the HK MP5 40/10 series. The housing is already clipped and pinned for...HKP-02129$0.00 -
H&K MP5, HK94 & SP5K Rear Sight Drum & Base
H&K Heckler & Koch
$109.95H&K MP5, HK94, & SP5K Rear Sight Drum and Base This is an HK German part that's a great upgrade for the SP5, SP5K, and SP89 or MP5K models. We highly suggest adding the following items to complete the rear sight set that's not included. Sight...HKP-00073$109.95 -
H&K MP5K/SP89/SP5K 9mm Key Mod Handguard
HKP HK Parts
$89.95HK MP5K, SP89 Low Profile Forearm KEYMOD The Key MOD tactical hand guard easily installs on your firearm with minimal effort and locks up solid. No fitting required. Designed from the ground up by roller lock & HK enthusiasts with your shooting needs...HKP-17177$89.95 -
Out Of Stock
H&K MSG90 (7.62x.51/.308) 2 Position (0,1 Pictogram) Trigger Housing - Clipped & Pinned
H&K Heckler & Koch
$0.00H&K MSG90 (7.62x.51/.308) 2 Position (0,1 Pictogram) Trigger Housing - Clipped & Pinned This clipped and pinned semi-auto trigger housing is designed for the MSG-90 rifle. It is compatible with 2-position 0,1 semi-auto style trigger packs,...HKP-00539$0.00