
HAVE AN AIMPOINT ACRO? USE THIS PLATE TO ADAPT THE DOCTER FOOTPRINT TO THE AIMPOINT ACRO FOOTPRINT
Sig Mosquito / GSG Firefly Red Dot Mount – Fits Vortex Venom (Open Emitter), Viper, Burris FastFire, Docter Footprint
Quick Check: Confirm Your Pistol Model.
✅ Fits: Sig Sauer Mosquito and GSG Firefly.
Mounting Hardware Included: Yes.
Compatibility: Fits Docter / FastFire / Viper / Venom footprint optics.
Important: This is a press fit mount. A sight pusher tool may be required.
Recommendation: Professional installation is strongly recommended.
Installation & Overview
Upgrade your Sig Sauer Mosquito or GSG Firefly with a dependable red dot mounting solution without permanent slide modification. This EGW mount replaces the factory rear sight, allowing you to install a red dot using the existing dovetail.
Designed for optics using the Docter footprint, this mount supports popular red dots like the Vortex Venom (open emitter), Vortex Viper, and Burris FastFire series. It creates a low-profile setup ideal for plinking, training, and rimfire practice.
Machined from 7075 aluminum and finished in matte black hardcoat, this mount offers a strong yet lightweight solution designed to hold zero through regular use.
Learn more about optic footprints: RMR vs Docter vs RMSc Footprints Guide
Technical Specifications
- Mount Type: Dovetail Red Dot Mount
- Machined From: 7075 Aluminum
- Finish: Matte Black Hardcoat
- Overall Length: 1.811"
- Overall Width: .99"
- Fits Footprint: Docter / FastFire / Viper / Venom
- Mounting Method: Press Fit Dovetail
- Torque Specs: 15 in/lbs
- Made in: USA
Compatible Pistols
- Sig Sauer Mosquito
- GSG Firefly
Compatible Red Dots
- Viridian RFX25
- Vortex Viper
- Vortex Venom (Open Emitter)
- Burris FastFire 1
- Burris FastFire 2
- Burris FastFire 3
- Burris FastFire 4
- Docter
- ADE RD3-001
- ADE RD3-002
- ADE RD3-009
- UTG Reflex Micro Dot
- Crimson Trace CTS-1200
- Crimson Trace CTS-1300
- Sightmark Mini Shot
- Cuda RX-795
Why Choose This EGW Mount?
- ✔ No slide milling required
- ✔ Replaces rear sight using dovetail system
- ✔ Machined from solid 7075 aluminum
- ✔ Maintains secure zero under recoil
- ✔ Ideal for rimfire training pistols
- ✔ Made in the USA
Mounting Hardware Included
- (2) 6-32 x 5/16" Button Head Screws
- (2) 6-32 x 3/8" Flat Head Cap Screws
- (1) 6-32 x 3/16" Cup Point Set Screw
Installation Notes
- Remove the factory rear sight
- Install the mount in the dovetail
- Secure with set screw if applicable
- Install optic
- Apply blue Loctite
- Torque mounting screws to 15 in/lbs
Fitment Warning
This mount is designed specifically for the Sig Sauer Mosquito and GSG Firefly platforms. Verify your firearm model before purchasing.
Warning: This product may contain trace amounts of lead. For more information, visit www.P65Warnings.ca.gov.