HK G3/91 Series
Discover the ultimate collection of parts for your H&K G3 and H&K 91, designed to enhance precision, reliability, and performance. Featuring G3 Stocks for improved ergonomics, 91 Barrels for superior accuracy, and G3 Triggers for enhanced responsiveness. Our selection also includes 91 Handguards for advanced protection and control, G3 Forearms for optimal handling, and detailed Parts Kits to fully equip your firearm for any scenario. Each component is engineered for flawless compatibility with your H&K G3 or H&K 91, ensuring your rifle meets the highest standards of operation and craftsmanship.
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H&K (5.56/.223) & (7.62x51/.308) Hammer Spring- Extra Power
H&K Heckler & Koch
$14.95H&K (5.56/.223) & (7.62x51/.308) Hammer Spring- Extra Power New HK German extra power hammer spring for all .308/.223 Semi & Full Auto Trigger Packs. This is a must have spare replacement part for your HK firearm parts bin. The heavy hammer...HKP-16447$14.95 -
H&K Roller Type Trip Lever
H&K Heckler & Koch
$29.95H&K Roller Type Trip Lever This is a genuine German Heckler & Koch part. This is the newer style trip lever for use with a roller sear catch, not the older friction type. Please Note: May or may not be marked with the X or XX...HKP-02466$29.95 -
PTR HK Mil-Spec AR Stock Adapter & Buffer Tube
PTR
$124.95PTR HK Mil-Spec AR Stock Adapter & Buffer Tube AR15 to HK 90 series stock adapter for AR15 stocks that includes the mil-spec buffer tube and castle nut to use any mil-spec AR15/M16 stock of your choice on your HK rifle or SBR build. With the adapter...HKP-16583$124.95 -
H&K MP5, 93/53, G3 (9mm, 5.56/.223, 7.62/.308) 3 Position (S,U,O Pictogram) Contract Housing - USED
H&K Heckler & Koch
$29.95H&K MP5, 93/53, G3 (9mm, 5.56/.223, 7.62/.308) 3 Position (S,U,O Pictogram) Contract Housing - USED Enhance your H&K firearm with this authentic contract housing, featuring a 3-position pictogram (S, U, O) for versatile fire control...HKP-19912$29.95 -
H&K 91/G3 (7.62x51/.308) Ejector Lever
H&K Heckler & Koch
$24.95New H&K .308 Ejector Lever Genuine HK German part. Compatible With: HK G3 HK 91 PTR-91 HK 51HKP-00832$24.95 -
HKP HK MP5 Picatinny Rail Optic Mount - Extended
HKP HK Parts
$109.95HKP HK MP5 Picatinny Rail Optic Mount HK Parts Picatinny style optic mount for the MP5 or MP5K. Quickly mount any Picatinny optic to your HK while retaining a full view of the factory sights. Available exclusively at HK Parts. Compatible With: HK...HKP-21489$109.95 -
FMP - G3 Parts Kit - With Mags
HKP HK Parts
$290.00FMP - G3 Parts Kit - With Mags The G3 has been an iconic battle rifle utilized all over the world and revered as one of the best that H&K has offered. You now have the opportunity to build one of these iconic battle rifles. Licensed by H&K and...HKP-20865$290.00 -
H&K G3/91 (7.62x51/.308) SEF Polymer Housing - USED - Clipped & Pinned
H&K Heckler & Koch
$79.95H&K G3/91 (7.62x51/.308) SEF Polymer Housing - USED - Clipped & Pinned This Germa made Heckler & Koch G3 surplus grip housing comes in black polymer clipped & pinned, ready to drop on your HK 91, HK G3, PTR-91, or other HK .308 type...HKP-00722$79.95 -
H&K Ambidextrous Sling Pin For Forearm - Small
H&K Heckler & Koch
$66.95HK 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$66.95 -
H&K Full Auto Trigger Pack Elbow Spring With Roller
H&K Heckler & Koch
$4.95H&K Full Auto Trigger Pack Elbow Spring With Roller Used- Good shape. This item is a factory HK German replacement part.HKP-16241$4.95 -
Magpul M-LOK 5 Slot Rail Section
Magpul
$18.95Magpul M-LOK 5 Slot Rail Section Designed for use with all M-LOK compatible Hand Guards and Forends, M-LOK Aluminum Rail Sections allow the attachment of various 1913 Picatinny spec rail-mounted accessories such as lights, vertical grips, etc. Machined...HKP-19568$18.95 -
H&K 91/G3 (7.62x51/.308) Backplate & Recoil Rod Assembly Complete
H&K Heckler & Koch
$24.95H&K 91/G3 (7.62x51 / .308) Backplate & Recoil Rod Assembly Complete Used- Surplus- in good shape. Each backplate comes in the parkerized finished as issued to the German military complete and 100% serviceable. Ready to install. This is also a...HKP-16144$24.95 -
PTR (5.56/.223) & (7.62x51/.308) Bird Cage Flash Hider - Threaded 15x1 RH
PTR
$19.95PTR (5.56/.223) & (7.62x51/.308) Bird Cage Flash Hider - Threaded 15x1 RH Crafted to exacting HK specifications, our new flash hider is manufactured in the USA by PTR 91. This component delivers unparalleled performance and value. Featuring the...HKP-01447$19.95 -
H&K 91/G3 (7.62x51/.308) Firing Pin - Used
H&K Heckler & Koch
$6.95H&K 91/G3 (7.62x51/.308) Firing Pin - Used Great for spares as this is a common wear item. Compatible With: HK G3 & HK 91, PTR or clone riflesHKP-16710$6.95 -
H&K 91/G3 (7.62x51/.308) Mag Release Set
H&K Heckler & Koch
$34.95HK .308 Magazine Release Set (Left to Right) This magazine catch set consists of 4 pieces and is HK-manufactured. Compatible With: HK .308 rifles HK G3 HK 91 PTR-91 HK 91 Clones or Variants Includes: Magazine Catch Magazine Catch Spring Push...HKP-00929$34.95 -
H&K MP5, 93/53/33, G3/91 (9mm, 5.56/.223, 7.62/.308) SEF Trigger Housing - Clipped & Pinned - Excellent
H&K Heckler & Koch
$149.95H&K MP5, 93/53/33, G3/91 (9mm, 5.56/.223, 7.62/.308) SEF Trigger Housing - Clipped & Pinned - Excellent In excellent shape! Most have never been on a firearm. They may have storage and handling marks on the polymer housing. Specifications: Made...HKP-19913$149.95 -
H&K Rear Sight Bearing
H&K Heckler & Koch
$1.99H&K Rear Sight Bearing Factory HK Part for all rear sight assemblies. This item is required for any HK diopter rear sight assemblies.HKP-00145$1.99 -
H&K MP5 9mm SEF Navy Style Trigger Housing - Clipped & Pinned - USED
H&K Heckler & Koch
$89.95H&K MP5 9mm SEF Navy Style Trigger Housing - Clipped & Pinned - USED In used but good condition. Each German HK housing will have some handling marks, nicks and dings. Each housing is in perfectly useable condition and each unit has been clipped...HKP-19787$89.95 -
Out Of Stock
HKP Semi Auto Shelf for Receiver - Billeted
HKP HK Parts
$17.95HKP Semi Auto Shelf for Receiver - Billeted 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 use of...HKP-21470$17.95 -
H&K German Recoil Guide Rod Rivet-Used
H&K Heckler & Koch
$0.48H&K German Recoil Guide Rod Rivet-Used This rivet holds the stop pin and recoil spring captive and in place to the recoil rod itself. Compatible With: G3, 91, 33, 93, 53 MP5, 94 MP5K SP89 HK21 variantsHKP-16985$0.48 -
Shooting Sight HK MP5, HK 91/93/94, HK G3 & Clones Heckfire 2-Stage Trigger
$399.95Heckfire trigger for MP-5, HK 91/93/94, G3, Clones 2-stage trigger with around 5lb total pull. Drop-in to all lowers. The updated selector levers work for all lowers (you no longer need to tell us if it is an SEF or an AMBI lower) and they cover...HKP-20173$399.95 -
HKP Roller +3 - New - 8.03mm
H&K Heckler & Koch
$8.99Roller +3 - New - 8.03mm HK Parts Standard (8.03 mm) locking roller, The proper roller size is essential for proper bolt gap. US Manufacture. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to...HKP-19425$8.99 -
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 trunnion. Each pin is slightly oversized for...HKP-01662$0.00 -
PTR (5.56/.223) & (7.62x51/.308) Muzzle Brake - Threaded 15x1 RH
PTR
$25.95PTR (5.56/.223) & (7.62x51/.308) Muzzle Brake - Threaded 15x1 RH Correct HK threading 15x1 right hand with HK style retaining spring to latch on the HK splined barrel. Made in the US and counts as one US 922r compliant part. Specifications: Threaded...HKP-02148$25.95 -
H&K Ambidextrous Selector Lever - Right Side
H&K Heckler & Koch
$89.95H&K Ambidextrous Selector Lever - Right Side This is the right-side selector of the ambidextrous trigger packs. This part will only work on ambidextrous style or pictogram style housing and trigger packs. New HK German manufactured. Compatible...HKP-00127$89.95 -
H&K G3 Large Buffer Screw
H&K Heckler & Koch
$1.95HK G3 Large Buffer Screw This is the screw that screws in the back of the buffer. This is also needed to install the Magpul PRS2 stock. Used- in good, working condition.HKP-16981$1.95 -
MM HK 33/91/93/G3 5.56/.223 & 7.62x51/.308 Clubfoot With Heavy Rubber Buttpad
Michaels Machines
$229.95US-Made Clubfoot (21E/23E Style) Central Buttstock Section With US Heavy Rubber Buttpad Fits all HK 91/G3/21/23 and HK93/33/53 backplates and buffers. Just add your buffer and backplate and you are good to go. Great replacement or upgrade for your HK...HKP-01144$229.95 -
HKP 91/93/33/G3 (7.62x51/.308) Enhanced HK Buffer For HK German MSG90 & PSG1
HKP HK Parts
$129.95HKP Enhanced Buffer This buffer is the factory correct style PSG1 & MSG90 stock buffer found in all factory HK PSG1, MSG90 German stocks. The overall diameter is .80" Compatible With: HK 91 G3, 93, 33, or PTR stock.HKP-01014$129.95 -
MKE PTR PDW Retractable Stock
MKE
$459.95MKE PTR PDW Retractable Stock A3 Factory new MKE stock professionally converted to fit PTR PDW rifles and pistols. This PTR PDW stock was modified with a heavy profile collapsing rod insert heat treated for longevity. The correct collapsing length on the...HKP-21376$459.95 -
Flat Bending Jig Set For All HK Style Flats - Billeted - All Steel
$599.95Flat Bending Jig Set For All HK Style Flats - Billeted - All Steel NEW- LATEST 4th GENERATION 100% ALL STEEL VERSION AND DESIGN. THE FINEST JIG SET AVAILABLE! All steel billeted universal flat bending jig for all HK receiver flats including our new...HKP-19595$599.95 -
HKP SEF Short Axle Selector Lever For Metal Trigger Housings Only - Used
HKP HK Parts
$9.95HKP SEF Short Axle Selector Lever For Metal Trigger Housings Only - Used Compatible with all metal HK grip frames. Please Note: The polymer (plastic) style SEF housing uses the longer axle SEF selector lever, not this product offering.HKP-00120$9.95 -
H&K 91/G3 (7.62x51/.308) Cocking Handle - All Metal - Surplus
H&K Heckler & Koch
$8.49HK German HK G3 & HK 91 Older Style All Metal Cocking Handle Used German Military Surplus. No longer made or offered by HK. A genuine Heckler and Koch part. All steel cocking handle. Rare and hard to find. Compatible With: HK 91 HK G3 PTR-91 HK...HKP-16766$8.49 -
H&K German Roller +2 - Used - 8.02mm
H&K Heckler & Koch
$7.95H&K German Roller +2 - Used - 8.02mm Used HK standard (8.02 mm) locking roller. The proper roller size is essential for proper bolt gap. HK German Manufacture. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the...HKP-19366$7.95 -
MKE HK G3 Retractable Buttstock
MKE
$359.99MKE HK G3 Retractable Buttstock The Century Arms MKE Retractable G3 Buttstock is an easy-to-install replacement stock system for HK G3-style firearms. The simple lock/release system is easy to operate, allowing shooters to adjust the stock length...HKP-21182$359.99 -
Elite Tactical Systems Universal C.A.M. Loader For Rifles
Elite Tactical Systems
$29.99Elite Tactical Systems Universal C.A.M. Loader For Rifles The first truly universal loader for rifle magazines. A must-have for every rifle owner. Doesn't damage feed lips. Saves time and energy, easy on your thumbs. Features: Loader easily picks up...HKP-18741$29.99 -
H&K Universal Gun Cleaning Wick Set - 8 Piece Set
H&K Heckler & Koch
$1.95Original German Army Issue HK91/G3/PTR Cleaning Kit Wick - Set of 8 Originally issued for the G3,91 & MG3 firearms but will work on pretty much any and all rifles & pistols. Each set comes with 8 BRAND NEW German manufactured cleaning wicks. Each...HKP-17646$1.95 -
PTR HK 93/91/33/53/G3 (5.56/.223) & (7.62x51/.308) Central Stock Section With Butt Pad
PTR
$99.95U.S. HK 91, G3, PTR Central Stock Section Black With Butt Pad Compliant parts are hard to find and are important for keeping your HK G3, HK 91, HK33, and 93 build 922r compliant. Compatible With: HK G3, 91, PTR CETME HK 93, 33, 53 Other...HKP-00379$99.95 -
H&K HK G3, HK 91, PTR, HK 93, HK 53, HK 33 Anti-Rattle Mag Release - Black - Surplus
H&K Heckler & Koch
$24.95H&K HK G3, HK 91, PTR, HK 93, HK 53, HK 33 Anti-Rattle Mag Release - Black - Surplus Pulled from demilled German HK firearms. Once refinished this item can be made to look like new. For install on all HK .223 & .308 HK Rifles. This is the highly...HKP-17855$24.95 -
On Sale
Franklin Armory HK MP5/91/93 Binary Trigger Pack - HK-C1
FA Franklin Armory
Now: $629.99Was: $699.95Franklin Armory BFSIII HK-C1 Binary Trigger Pack For H&K 90 Series The BFSIII™ for HK is a 3-Position Trigger. In position 3 it will fire 1 round on Pull and 1 round on Release. This makes it the fastest semi-automatic trigger on the market...HKP-18434Now: $629.99Was: $699.95 -
H&K Cocking Tube End Cap/Dust Cap
H&K Heckler & Koch
$34.95H&K Cocking Tube End Cap/Dust Cap This part is Factory HK, painted black and not surplus or old stock. Each is factory-fresh and manufactured in steel. Compatible With: Compatible with all 90 series HK firearms and clones that use a triple...HKP-00099$34.95