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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Out Of StockOn Sale
HK Linear Compensator - Threaded 5/8x24 RH - (5.56 & .308) - USED
HKP HK Parts
Now: $65.95Was: $149.95HK Linear Compensator - Threaded 5/8x24 RH - (5.56 & .308) - USED ONLY 1 UNIT AVAILABLE - AS PICTURED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Linear compensators give you the best of both...HKP-19338-USEDNow: $65.95Was: $149.95 -
On Sale
HK MP5, HK91, G3, HK33 Cocking Tube End Cap - Incomplete - BLEMISHED
H&K Heckler & Koch
Now: $21.95Was: $39.95H&K Cocking Tube End Cap/Dust Cap - BLEMISHED SOLD INDIVIDUALLY - VARYING CONDITION SHOWN INCOMPLETE COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. This part...HKP-00099-BNow: $21.95Was: $39.95 -
On Sale
HK G3 Brass Catcher
B&T Brugger & Thomet
Now: $297.95Was: $385.00B&T HK G3 Brass Catcher THIS CLOSEOUT PART IS NOT ELIGIBLE FOR RETURN, REFUND, OR EXCHANGE. SALE IS FINAL. Mounts to B&T tri-rail handguard (BT-21042) which is no longer available from B&T. The B&T HK G3 brass catcher is a...HKP-21703Now: $297.95Was: $385.00 -
Out Of Stock
HK G3K, 51 Rear Sight Drum - 7.62 / .308
H&K Heckler & Koch
$104.95HK German G3K, HK51, SL6, & SL7 Rear Sight Drum Hard to find and no longer made or imported. Compatible With: G3K HK51 SL6 SL7HKP-02049$104.95 -
HK91, G3 Complete Bolt Head - Used
H&K Heckler & Koch
$179.95German HK G3 & HK 91 & PTR Bolt Head Complete - Used German "IC" Date Coded Made On HK tooling & prints in Germany in 1983 . Each used bolt head is complete with all parts installed & 100% functional. Taken from live demilled German HK G3...HKP-00206$179.95 -
Out Of Stock
HK33, HK53, HK93, HK91, G3 1200 Meter Rear Sight - 3rd Generation
H&K Heckler & Koch
$0.00HK German 3rd Gen 1200 Meter Rear Sight. New HK German Manufacture. No longer in productionHKP-00561$0.00 -
Out Of Stock
Bolt Head Locking Roller -4, 7.96mm
HKP HK Parts
$8.95HKP HK Parts -4 7.96mm Undersized Roller HK spec under-sized roller that will fit all HK bolt heads including HK91, G3, HK33, HK53, HK93, HK94, MP5, SP89 all clones and the Cetme and its clones. An easy way to remember the size you need to order: Plus...HKP-17558$8.95 -
HK91, G3 Sling Button
H&K Heckler & Koch
$9.95Heckler and Koch Sling Button Stud for HK91 and G3 Heckler and Koch sling button stud for HK91 and G3 rifles. A factory-style replacement part for restoring or maintaining the sling attachment point on compatible HK pattern rifles. Compatible...HKP-99475$9.95 -
On Sale
HK Sling - Original German - Used
H&K Heckler & Koch
Now: $74.95Was: $99.95Heckler and Koch Original German Sling - Used Original German HK sling for compatible HK rifles and pistols. A factory-style sling option for restoring, replacing, or completing an original HK setup. THIS CLOSEOUT PART IS NOT ELIGIBLE FOR...HKP-99483Now: $74.95Was: $99.95 -
On Sale
HK91, G3, HK93, HK53 Extractor Spring - Used
H&K Heckler & Koch
Now: $3.74Was: $6.74Heckler and Koch German Used Extractor Spring for HK91, G3, HK93, HK53 Factory HK German used extractor spring for HK91, G3, HK93, and HK53 pattern firearms. The extractor spring is one of the most frequently replaced parts on HK firearms and is a...HKP-00188-USEDNow: $3.74Was: $6.74 -
On Sale
HK91, G3 Magazine Floorplate - 7.62x51 / .308
H&K Heckler & Koch
Now: $19.95Was: $29.95Magazine Floorplate for HK91, G3 - 7.62x51 / .308 Magazine floorplate for HK91 and G3 7.62x51 / .308 magazines. A factory replacement part for restoring or maintaining compatible magazine assemblies. Compatible With: HK91, G3 THIS...HKP-99477Now: $19.95Was: $29.95 -
On Sale
HK SEF Trigger Housing - Semi-Auto
H&K Heckler & Koch
Now: $129.95Was: $169.95Heckler and Koch Semi-Auto SEF Trigger Housing Heckler and Koch semi-auto SEF trigger housing for compatible HK firearms. A factory-style housing option for builds, replacements, or repair projects requiring a semi-auto SEF configuration. THIS CLOSEOUT...HKP-99472Now: $129.95Was: $169.95