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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HK G3 Early Style Backplate with Recoil Rod - Used
H&K Heckler & Koch
$24.95G3 - Early Production CETME, G3 HK91 Backplate - UsedHKP-19556$24.95 -
HK91, G3 Trigger Pack - Ambi 0,1 - Match Trigger
HKP HK Parts
$474.95HK Parts and Heckler and Koch 2 Position 0,1 Ambidextrous Match Trigger Pack HK G3 and HK91 (7.62x51/.308) Complete with custom trigger conversion to achieve a light target trigger with an ultra-smooth pull. This HK German semi-auto...hkp-18425$474.95 -
HK91, G3 Firing Pin - Titanium
HKP HK Parts
$34.95HK G3, 91 & PTR Firing Pin - Titanium Grade 6 weapons grade Titanium manufacture. Made 100% 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 G3, 91 & PTR weapon system. Get the...HKP-17937$34.95 -
On Sale
HK Trigger Pack Ejector Lever Axle - USED
H&K Heckler & Koch
Now: $12.95Was: $19.95HK Trigger Pack Ejector Lever Axle - USED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. HK German ejector lever axle pin for all HK trigger packs. This is the factory correct axle pin that holds the...HKP-01091-USEDNow: $12.95Was: $19.95 -
HK91, G3 Sniper Trigger Group - AC Unity Grip
H&K Heckler & Koch
$699.95H&K HK91, G3 Sniper Trigger Group with AC Unity Grip The G3, HK91 match trigger group paired with the AC Unity PSG1 style sniper grip is an outstanding choice for anyone looking to create a tactical and visually impressive build. With its robust...HKP-22252$699.95 -
HK91, G3 Slimline Handguard - Jungle Green - New Old Stock
H&K Heckler & Koch
$39.95H&K 91/G3 (7.62x51/.308) Slimline Forearm - Jungle Green - New Old Stock These are a nice addition to the collection. Compatible With: All full forearm length HK 91, G3, PTR style firearmsHKP-22102$39.95 -
Carbon-Cleaner - 150 ml Pump
SchleTek
$16.95SchleTek Carbon Cleaner 150 ml Pump SchleTek Carbon Cleaner is a powerful, fast-acting solution designed to remove stubborn carbon buildup from firearms, suppressors, bolts, gas systems, and other precision components. Its advanced formula penetrates...HKP-21729$16.95 -
On Sale
HK91, G3 Trigger Group - 4 Position 0,1,3,F - Safe Semi Only
H&K Heckler & Koch
Now: $1,234.95Was: $1,999.95HK G3 & HK 91 4 Position (0,1,3, F) Burst Trigger Group Complete - New Factory German The look and feel of the original 4-position, push-pin trigger group but with a semi-auto trigger pack. This clipped and pinned housing is drop-in ready and a great...HKP-01663Now: $1,234.95Was: $1,999.95 -
On Sale
HK91, G3 A2 Stock - Tan - Saudi Contract - Rare
Other
Now: $168.95Was: $279.95VARYING CONDITION SHOWN - SOLD INDIVIDUALLY Original Saudi Arabian contract G3 A2 fixed stock in tan. Don't miss your chance to get a rare contract G3 stock assembly in this condition. Compatible With: HK91, G3 In spec. clones and custom builds THIS...HKP-99424Now: $168.95Was: $279.95 -
HK FMP G3 Rear Receiver Section - SURPLUS
FMP HK CONTRACT
$24.95H&K G3 Complete Parkerized Rear Receiver Section without Rear Sight - SURPLUS UNIT CONDITION WILL VARY Steel rear receiver section manufactured by FMP on HK tooling. Does not include the rear sight. Compatible with: HK G3, HK91 In-spec...HKP-22375$24.95 -
Procomp AR Rifles Muzzle Brake - 7.62x51 / .308 - Threaded 5/8x24 RH
Surefire
$95.00Surefire Procomp AR Rifles (7.62x51/.308) Muzzle Brake - Threaded 5/8x24 RH The SureFire PROCOMP muzzle brake is designed for AR10/LR308 rifles and variants with 5/8x24 muzzle threads. It significantly reduces recoil impulse and features neutral porting...HKP-19486$95.00 -
Out Of Stock
HK91, G3 Trigger Group (0,1) - 2 Position - Safe / Semi Only
HKP HK Parts
$429.95G3, 91, PTR Trigger Group 2 Position Housing 0,1- Safe, Semi Only Finally a lower cost alternative to the spendy & rare all-German HK FBI or 0,1 ambidextrous trigger group in a 2 position factory German HK housing. Each trigger group features a...HKP-17235$429.95