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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On Sale
HK 90 Series Night Sight System - Front and Rear
XS Sights
Now: $138.59Was: $153.99XS Front & Rear Night Sight System - HK Compatible With: HK MP5, 94 HK MP5K, SP89 HK 90 series or Clones HK 91, G3, PTR HK 93, 33, 53 HK MP5 40/10 HK21 HK 416 Other HK 90 series custom builds that use the diopter-style sights.Now: $138.59Was: $153.99 -
On Sale
Now: $8.96Was: $9.95 -
HK Optic Mount Ring Set - 1 Inch for 30mm Scope
H&K Heckler & Koch
$89.95H&K Scope Mount Ring Set - 1 Inch For 30mm Scope Each set includes one complete set of inserts for one complete setup (4 individual sides). This is a Genuine HK German part. Insert rings (1 inch) - HK 30mm claw mount not included.$89.95 -
On Sale
HK G3 Rear Receiver Section with Rear Sight - Complete - Parkerized - SURPLUS
H&K Heckler & Koch
Now: $49.46Was: $54.95H&K G3 Complete Parkerized Rear Receiver Section w/ Rear Sight - SURPLUS UNIT QUALITY MAY VARY - SEE PHOTOS FOR EXAMPLE OF CONDITION RANGE Genuine H&K parkerized steel rear receiver section with fully installed G3 rear sight assembly, two stock...Now: $49.46Was: $54.95 -
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 firearmsNow: $1.46Was: $2.45 -
Out Of StockOn Sale
Sidelok Optic Mount - 30mm - Modular
KDG Kinetic Development Group
Now: $202.45Was: $224.95Kinetic Development Group Sidelok Modular Optic Mount - 30mm The new KDG Modular Optic Mount is based off the proven Sidelok family of quick detach optic mounts and features the same user-friendly, tool-free design. KDG set out to design a Sidelok mount...Now: $202.45Was: $224.95 -
On Sale
PTR Front Sight - Flat Tip - Gen 2 - Orange
Blitzkrieg Components
Now: $76.45Was: $84.95Blitzkrieg PTR Flat Tip Front Sight Gen 2 - Orange The Blitzkrieg Gen 2 HK-style front sight delivers a fast and precise aiming point with its conventional flat-tipped post and bright orange stripe. Designed for easy installation, it utilizes a roll pin...Now: $76.45Was: $84.95 -
On Sale
HK G3/91 Front Sight Tower - SURPLUS
H&K Heckler & Koch
Now: $15.25Was: $16.95H&K G3/91 Front Sight Tower - SURPLUS UNIT QUALITY MAY VARY - SEE PHOTOS FOR EXAMPLE OF CONDITION RANGE Used genuine H&K steel front sight tower for the G3 & HK91. Provides the front sight post assembly for target acquisition and secures the...Now: $15.25Was: $16.95 -
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 bipodsNow: $7.46Was: $38.95 -
On Sale
HK MP5, MP5K, G3 Night Sights
XS Sights
Now: $143.95Was: $159.95Trijicon Bright & Tough - Night Sights - H&K SP89, Carbines, Rifles Trijicon bright & tough night sights are three-dot iron sights that increase night-fire shooting accuracy by as much as five times over conventional sights. Housed in a metal...Now: $143.95Was: $159.95 -
On Sale
Fero Z-51 Night Vision Scope - Parts Grade
Zeiss / Eltro
Now: $394.15Was: $499.95Zeiss/Eltro Fero Z-51 Night Vision Scope-Parts Grade Used in non-working condition -SOLD AS IS. Comes shipped in the original German Army transportation case. Good for spare parts, props, etc. These are the last remaining units available. Some parts may...Now: $394.15Was: $499.95 -
On Sale
HK G3 Front Sight Ring
H&K Heckler & Koch
Now: $7.16Was: $7.95H&K HK G3 Front Sight Ring Factory HK replacement front sight ring. Compatible With: HK G3Now: $7.16Was: $7.95