HK91 / G3 / HK51 Sights / Optics / Mounts
Maximize your G3/91's accuracy potential. Find classic HK diopter sights, scope mounts, rail adapters, and premium optics from leading brands.
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HK Front Sight Blade
H&K Heckler & Koch
$11.95H&K Front Sight Blade New Factory HK manufactured. This is compatible with all HK front sight towers & triple frames.HKP-00370$11.95 -
Out Of Stock
HK Screwdriver for Adjustable Rear Sight
H&K Heckler & Koch
$10.95Screwdriver for Adjustable Rear Sight Precision screwdriver designed for adjusting rear sights. Ideal for fine-tuning windage and elevation.HKP-21981$10.95 -
On Sale
HK MP5 Rear Sights Locking Washer
MKE
Now: $1.46Was: $2.45MKE HK MP5 Rear Sights Locking Washer Secures the rear sight assembly on MKE and HK MP5 models to maintain proper alignment. Compatible With: Century Arms AP5 HK MP5/MP5K HK SP5/SP5K Will work with all 90 series firearmsHKP-22240Now: $1.46Was: $2.45 -
On Sale
HK MP5 SP5K, SP89, G3, HK91, HK33, HK53, HK93 Rail Riser - Picatinny
MFI
Now: $22.46Was: $44.95MFI Picatinny Rail Riser For Scope MFI Picatinny rail riser to elevate your optic by 18.8mm (.740"). This see-through riser allows a full view through the factory iron sights. This unit is similar to the A.R.M.S. #5 base scope mount and STANAG to...HKP-00899Now: $22.46Was: $44.95 -
Picatinny Optic Mount, Front Sight Tower - Red
$39.95HKP Picatinny Rail Mount for Front Sight Tower - Red HK Picatinny rail mount that replaces the forearm (small) push pin and mounts to the side of the front sight tower and allows you to add sling swivels, lasers, lights & accessories. This add on is...HKP-20800$39.95 -
HK91, G3 Rear Sight
H&K Heckler & Koch
$28.95HK German Factory Rear Sight Assembly With Drum Assembly - New Each rear sight is a brand new, old stock genuine Heckler & Koch rear sight. Comes as shown. Mounting hardware is offered separately. Now out of production, it's rare and hard to find in...HKP-00361$28.95 -
HK91, G3 Front Sight Tower - SURPLUS
H&K Heckler & Koch
$16.95H&K G3/91 Front Sight Tower - SURPLUS UNIT QUALITY MAY VARY - SEE PHOTOS FOR EXAMPLE OF CONDITION RANGE Priced for ONE Unit - Sold Individually Used genuine H&K steel front sight tower for the G3 & HK91. Provides the front sight post assembly...HKP-22158$16.95 -
$9.95 -
On Sale
HKP Front Sight Blade - BLEMISHED
HKP HK Parts
Now: $2.21Was: $3.95HKP Front Sight Blade - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. US manufactured HK front sight blade. New US made. Compatible With: All HK...HKP-17551-BNow: $2.21Was: $3.95 -
On Sale
Harris Bipod Mount - KeyMod Handguard
Ergo
Now: $7.46Was: $38.95Ergo Harris Bipod Mount - KeyMod Handguard Features: KeyMod Bipod Mount Black anodized 6061-T6 Alum. Compatible With: Harris-style bipodsHKP-17874Now: $7.46Was: $38.95 -
HK G3 Front Sight Ring
H&K Heckler & Koch
$4.95H&K HK G3 Front Sight Ring Factory HK replacement front sight ring. Compatible With: HK G3HKP-21641$4.95 -
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