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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DTAC HK MP5SD Front End Kit
DTAC Dakota Tactical
$1,199.95Dakota Tactical HK MP5SD Front End Kit If you have wanted to convert that MP5 or SP5 to an SD but didn't know where to start, look no further. Our kit provides all necessary components (aside from suppressor) to do so. With a DTAC Cage and SD guard...HKP-21318$1,199.95 -
Full AutoTrigger Pack Elbow Spring W/ Roller
H&K Heckler & Koch
$44.95Full AutoTrigger Pack Elbow Spring W/ Roller This item is a factory HK German replacement part.HKP-02438$44.95 -
G3 A2 Adjustable Stock Extension
USA
$69.95HK G3 A2 Adjustable Stock Extension Each stock extension is adjustable in 1/2" increments to enable you to achieve the proper length of trigger pull. This allows you a full 1.50" in length adjustments. These extensions are manufactured using high-impact,...HKP-00872$69.95 -
H&K 21E/11E (7.62x51/.308) Extractor Spring
H&K Heckler & Koch
$24.95HK21E & 11E Factory Extractor Spring Made by HK Germany for all HK21E's and 11E's.HKP-00815$24.95 -
H&K 91/G3 A3 Retractable Stock - Used Good
H&K Heckler & Koch
$799.95HK G3 & HK 91 (7.62x51/.308) A3 Retractable Stock German - Used Surplus - Excellent Condition Used HK German A3 retractable stocks pulled from German G3 rifles. All come in working order with various degrees of use but 100% operational. These range...HKP-18067$799.95 -
H&K G36/SL8 (5.56/.223) Forearm Original Version
H&K Heckler & Koch
$99.95German HK G36 & HK SL8 Black Forearm- 1st Gen This part is the older style 1st gen that has the bipod grove to allow the factory HK bipod to be installed. New HK black in color without a heat shield. No longer in production...HKP-01936$99.95 -
H&K HK 416 A5 Trigger Guard - RAL 8K
H&K Heckler & Koch
$54.95H&K HK 416 A5 Trigger Guard: Check out the factory H&K A5 trigger guard, now available in the highly desirable Ral8000 anodized finish. This is the latest and greatest addition to complete your A5 416 build. Compatible With: HK 416 A3/A5 HK...HKP-21517$54.95 -
H&K HK 93/53/33 (5.56/.223) 30 Round Magazine Spring
H&K Heckler & Koch
$8.45HK 93,33, & 53 Magazine Replacement Spring For Steel German HK 30-Round Magazines This is a hard-to-find and must-have spare part for your HK high-capacity mags. Please Note: Although not factory correct, these springs will work in the 25-round HK 93...HKP-14411$8.45 -
H&K HK G28 Buffer Tube - FDE
H&K Heckler & Koch
$224.95HK G28 Buffer Tube / Receiver Extension- HK Tan (Ral 8000) New HK German buffer tube with the proper slot cut for use with the G28 stock. This is the factory correct part needed to get the full range and use of the G28 adjustable stock. Compatible...HKP-16762$224.95 -
Out Of Stock
H&K HK G36 Convex Folding Adjustable IDZ Stock - Black
H&K Heckler & Koch
$399.95H&K HK G36 Convex Folding Adjustable IDZ Stock - Black Features: 3 position forward and back 3 cheek piece elevation positions. Folding capability while retaining the ability to fire with the stock folded. Super robust, compact design Compatible...HKP-17703$399.95 -
Out Of Stock
H&K HK G36 Mag Well - Black
H&K Heckler & Koch
$69.95HK G36 High Capacity Magazine Well It will fit all factory G36 magazines as well as the Magpul G36 mag as well. This item is a new HK factory German production. This item is also a needed enhancement when doing the SL8-G36 conversion.HKP-00625$69.95 -
H&K HK G36, HK G36K, HK G36C Complete Bolt Head
H&K Heckler & Koch
$599.95H&K HK G36, HK G36K, HK G36C Complete Bolt Head New latest and greatest HK German G36, G36K & G36C Bolt Head Complete. This Is Also The Needed Part To Allow The SL8 To Use The Double Stack Magazines. Inclused all of the parts such as the...HKP-00636$599.95 -
$9.99 -
H&K HK MR556/416 Semi Auto Axle For Selector Lever
H&K Heckler & Koch
$119.95H&K HK MR556/416 Semi Auto Axle For Selector Lever HK German safe, semi selector axle for the MR 556 & HK 416 family of firearms. All steel construction.HKP-15433$119.95 -
H&K HK MR556/MR762/416 Sniper PSG1 Style Grip - RAL 8K
H&K Heckler & Koch
$249.95H&K 416/417 & MR556/762 PSG1 Style Sniper Grip - RAL 8000 HK German PSG1 style sniper factory. Each grip will fit all AR-15/M-16 lower receivers as well. Superior fit & feel to any other grip on the market. HK has hit a home run with their...HKP-17693$249.95 -
H&K HK MR762 M-LOK 14.7" Handguard - FDE
H&K Heckler & Koch
$429.95Handguard - M-LOK - FDE - 14.7 - HK MR762 - Black Handguard for the HK MR762. It is 14.7 inches in length and has a flat top Picatinny Rail and M-LOK attachment points.HKP-19777$429.95 -
$64.95 -
H&K HK21/FMP Drum Hanger & 100rd Drum
H&K Heckler & Koch
$1,288.95H&K HK21/FMP Drum Hanger & 100rd Drum Complete your HK21 or FMP21 build with the incredibly rare original H&K drum hanger and 100-round drum. These components have long been discontinued and are essential for completing a proper HK21 or...HKP-21509$1,288.95 -
H&K HK416, MR556 12.5" M-LOK Compatible Handguard
H&K Heckler & Koch
$299.95Heckler & Koch MR556 & HK 416 - 12.5" M-LOK Handguard Manufactured by HK from aircraft grade aluminum with a black hard coat anodized finish, this M-LOK handguard is designed for the Heckler & Koch MR556 & HK 416 rifles chambered in...HKP-19695$299.95 -
H&K MP5 40/10 Flash hider - 3-Lug
H&K Heckler & Koch
$199.99H&K MP5 40/10 Flash hider - 3-Lug Fits all factory in-spec 3 Lug MP5 40/10 Barrels. Specifications: Made In Germany 3-Lug Compatible With: HK MP5HKP-00442$199.99 -
Out Of Stock
H&K MP5 40/10 Semi-Auto 4 Position (0,1,2,F) Trigger Housing - Clipped & Pinned
H&K Heckler & Koch
$0.00H&K MP5 40/10 Semi-Auto 4 Position (0,1,2,F) Trigger Housing - Clipped & Pinned This factory German trigger housing is designed for the MP5 40/10 with a 4 position pictogram (0,1,2,F). It comes clipped and pinned for use in semi-auto units,...HKP-19924$0.00 -
H&K UMP (.40 S&W/.45 ACP/9mm) Lower Backplate
H&K Heckler & Koch
$24.95H&K UMP (.40 S&W/.45 ACP/9mm) Lower Backplate HK German Backplate for all UMP lowers. You will need to add your existing buffer or order one to make a complete buffer assembly.HKP-16473$24.95 -
Out Of Stock
H&K UMP (.45 ACP) 25 Round Magazine - German LEO Markings - Used
H&K Heckler & Koch
$149.95German HK UMP .45 25 Round Magazine - Used Used PD trade in HK German UMP .45 cal 25 Round Factory Magazines. These magazines will fit all UMP factory firearms as well as the USC's that have been converted to accept UMP magazines. Please Note: The UMP...HKP-17917$149.95 -
HKP HK 91/G3 (7.62x51/.308) Complete Tungsten Full Auto Bolt Group
HKP HK Parts
$549.95HKP HK 91/G3 (7.62x51/.308) Complete Tungsten Full Auto Bolt Group US Made HK 91/G3 Full Auto Bolt Group Complete - NEW Each bolt group is built using HK factory prints, specs here in the US. As an added bonus each bolt group counts as two US parts for...HKP-16249$549.95 -
HKP HK MR762/417 Titanium Firing Pin
HKP HK Parts
$49.95HK MR762 & HK417 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 MR 762 & HK417 weapon system. Get the...HKP-17768$49.95 -
HKP Leather Key Chain - Red MP5
HKP HK Parts
$14.95HK Parts - Leather Key Chain - Red MP5 Now offering these high quality, handmade German artisan leather keychains. Be sure to check out our other color options.HKP-20655$14.95 -
HKP Mil-Spec Buffer Tube Kit
HKP HK Parts
$42.95Mil-Spec Buffer Tube Kit Compatible With: HK MR556 & 416 AR-15 style platforms Includes: Made with T7 7075 aircraft-grade aluminum Made in the USA with a polished inside tube Mil-Spec triple hard coat Teflon anodized finish Each unit comes with a...HKP-02735$42.95 -
HKP MP5 9mm Pistol Build Kit With Flat, Top Rail & Weldment Set
HKP HK Parts
$1,899.95MP5 9mm Pistol Build Kit Complete German & USA Made Parts MP5 9mm parts kit complete with all the parts needed for an MP5 semi-auto pistol. Each kit comes with all 6 of the needed US made compliance parts to be legal as a pistol (N/A) rifle, or SBR...HKP-18039$1,899.95 -
HKP MP5, MP5SD Universal Cocking Tube Support - Titanium
HKP HK Parts
$119.95HKP MP5, MP5SD Universal Cocking Tube Support - Titanium Made from aircraft grade 5 Titanium from the factory HK German print & specs. An HK German quality part made in the USA offered at a great price point. Each MP5 9mm cocking tube support will...HKP-18193$119.95 -
On Sale
Meprolight AK47 Front Sight
Meprolight
Now: $24.95Was: $49.95Features of Meprolight Tru-Dot Night Sight for AK 47 Features: No batteries or switches, always ready for action Unequaled low-light performance Brightest night sights available today Self-illuminated night sightsHKP-20366Now: $24.95Was: $49.95 -
MM HK 21 (7.62x51/.308) Factory Style T- Rail Set
Michaels Machines
$275.00Michael's Machines HK 21 (7.62x51/.308) Factory Style T-Rail Set HK21 US-made rails for all HK21 builds. This is similar to the rails above, only prepped/cut for the HK21 feed mechanism.HKP-00823$275.00 -
Out Of Stock
Nefarious Arms HK 416/MR556 10.4" A3 Barrel
Nefarious Arms
$694.95Nefarious Arms HK 416/MR556 10.4" A3 Barrel Each Nefarious Arms barrel is cold-hammer-forged and chrome-lined for years of accurate shooting. Grab this expertly crafted barrel for your next SBR or pistol build. Proudly made in the...HKP-21335$694.95 -
On Sale
OEM Fero Z51 Night Vision Manual
Now: $9.95Was: $24.95OEM Fero Z51 Night Vision Manual This is the manual for the recently imported German night vision scope for the MG3 Machinegun, G3 Rifle and Pazerbusche 84. The condition of these booklets will vary. Specifications: Height: 8.5" Width: 5...HKP-19604Now: $9.95Was: $24.95 -
PTR HK 91/G3 (7.62x51/.308) Trigger Group - 5 U.S. 922 Parts
PTR
$369.95HK 91, G3, & PTR91 Semi Auto Trigger Group Complete This lower is ready to drop on your semi-auto HK firearm. It comes complete with the US-made parts already installed. The remaining parts are all German HK parts to make up the rest of the trigger...HKP-02643$369.95 -
PWS Primary Weapons Systems HK 416 FSC556 Tactical Compensator
Primary Weapon Systems
$89.95FSC556 Tactical Compensator (Muzzle Brake) Compensator The PWS FSC556 has the very best compensation and decrease in muzzle rise. Combine that with enough flash suppression to keep the flash out of your optics and line of sight. Not to mention...HKP-01647$89.95 -
Smith Enterprises .45 ACP Vortex Pistol Flash Hider - Threaded 16x1 LH
Smith Enterprises
$79.95Smith Enterprises .45 ACP Vortex Pistol Flash Hider - Threaded 16x1 LH Each flash hider is threaded 16x1 LH twist. Made of 4140 ordnance grade steel, heat treated, and finished in the Melonite finish to add the best corrosion and abrasion resistance...HKP-02323$79.95 -
SureFire (5.56/.223) WARCOMP Flash Hider - Threaded 1/2x28
Surefire
$159.95SureFire (5.56/.223) WARCOMP Flash Hider - Threaded 1/2x28 This AR15 flash hider is compatible with 1/2x28 threaded barrels. Specifications: Stainless Steel DLC Coating Length 2.7 inches Threaded 1/2x28 Compatible With: HK 416/MR556 HK MR223 HK...HKP-18044$159.95 -
Aero Precision (7.62/.308) Muzzle Brake Gamma - Threaded 5/8x24 RH
Aero Precision
$104.95Aero Precision (7.62x51/.308) Muzzle Brake Gamma - Threaded 5/8x24 RH The VG6 GAMMA is a muzzle brake and compensator hybrid. It virtually eliminates recoil and minimizes muzzle movement. The unique combination of both braking and compensating features...HKP-19675$104.95 -
Out Of Stock
B&T HK G36/SL8 (5.56/.223) Rail w/ Flip Up Sights
B&T Brugger & Thomet
$359.95Swiss Made B&T G36 Picatinny Mounting Rail With Emergency Back-up Sights B&T Switzerland is an HK OEM manufacturer and produce top quality accessories for military and law enforcement around the world. This is a military grade...HKP-16894$359.95 -
B&T HK416, HK MR223 M-LOK Handguard for (11") - Black
B&T Brugger & Thomet
$279.95B&T M-LOK Handguard for HK416/MR223 (11") - Black B&T's one-piece 11-inch M-LOK handguard for the Heckler & Koch HK416 and civilian equivalent MR223 is an amazing improvement for the combat value of these rifles. A direct replacement for the...HKP-20402$279.95