HK91 / G3 / HK51 Series
Discover the ultimate collection of parts for your HK G3 and HK 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 HK G3 or HK 91, ensuring your rifle meets the highest standards of operation and craftsmanship.
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HK91, G3 Barrel - FMP - 17.7" - Threaded 15x1
FMP HK CONTRACT
$89.95HK G3, 91 Barrel - 7.62/.308 - 17.7" - Threaded 15x1 Original 17.7" FMP G3 barrel threaded 15x1 RH. Portuguese manufactured to HK's military specifications. These surplus barrels are perfect for building a FMP G3 parts kit or as a replacement. Barrels...HKP-22532$89.95 -
HK MP5, SP5, HK90 Series Paddle Mag Release Bushing - Full Auto - Used
H&K Heckler & Koch
$4.95H&K Full Auto Paddle Magazine Release Bushing HK German - Used This part is for use in all 90-series H&K weapon systems. Used for installing a paddle mag release. Please Note: This is not for use on semi-auto HK builds. This part is used for...HKP-02303$4.95 -
HK91, G3 Locking Piece - 45 Degree
H&K Heckler & Koch
$29.95Heckler and Koch New Old Stock German HK Locking Piece for G3, 91, and PTR This is the factory-correct 45-degree locking piece for HK 91/G3 and PTR .308 full-length firearms. All steel construction is new in sealed wrapping.HKP-00499$29.95 -
Sling Snap Hook 1" - Universal
USA
$4.95Snap Hook 1" This is a 1" HK-style snap hook for sling or other custom projects. We also offer 1.25" HK sling hooks, as these are great spare parts to have on hand.HKP-00730$4.95 -
HK91, G3 Rear Sight Assembly - Used-Excellent
H&K Heckler & Koch
$18.95HK German G3, 91, PTR Rear Sight Assembly - Used Excellent Condition HK German factory sight with rear sigh detent and detent spring installed. These sights are the finest hand-picked, sorted sights available at a fraction of the cost of a new $85 set...HKP-02229$18.95 -
HK91, G3 Buttstock Set with Backplate - OD Green - Hand Picked
H&K Heckler & Koch
$84.95Original G3, 91, PTR German Army Used Surplus O.D. Green Stock Set - Complete Factory HK German Production. Each stock set is used but in perfect working order. Each set was hand picked and the best sets we have in stock. Includes: Slimline...HKP-18237$84.95 -
HK90 Series Cocking Tube End Cap
H&K Heckler & Koch
$39.95H&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$39.95 -
HK MP5, HK90 Series AR Stock or Brace Adapter
HKP HK Parts
$99.95HKP AR Brace/Stock Adapter To HK 90 Series Firearms For use on any commercial, mil-spec, or pistol AR15/M16/M4 stock, brace, & buffer tube of your choice. Perfect for your HK rifle, pistol, or SBR build. With our M4 adapter, you can use your existing...HKP-16550$99.95 -
HK MP5, HK90 Series Hammer Strut
H&K Heckler & Koch
$9.95H&K G3,91,PTR, 93,33 & MP5, 94 Hammer Strut New HK German Hammer Strut for 90 series rifles and pistols. A perfect spare to have on hand. This is a non-pinned hammer spring shank. Perfect for your HK project or rebuild. Compatible With: The...HKP-15445$9.95 -
HK91, G3, PTR Wood Buttstock
H&K Heckler & Koch
$199.95Wood Stock - Used - Excellent Shape - HK G3, 91, PTR Complete rear stock for HK91/G3, PTR. These stock sets were in use with the German military and come used in varying degrees of condition ranging from very good to excellent shape overall. A rare...HKP-19275$199.95 -
HK Selector Catch Lever Spring - Ambi Trigger Packs
H&K Heckler & Koch
$12.95HK German Ambidextrous Trigger Pack Axle Spring For Catch Lever This is the spring that powers the ambi lever that allows you to take apart any of the ambidextrous trigger packs. This lever spring takes the spring tension off of the left and right side...HKP-17328$12.95 -
HK91, G3 Optic Mount - 220mm - Low Profile - Extended Picatinny Rail
B&T Brugger & Thomet
$199.95B&T Mounting Rail Low Profile Mount for HK G3, Long Extended Version Low profile rail that allows the use of iron sights while installed. Specifications: Color: Black Height max: 30.7 mm Length max: 220 mm Material: Aluminum NATO Accessory Rails:...HKP-16873$199.95