regular price: $49.99

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5 Rating 5 Rating (5 Customer Reviews)

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Model Number: SFB3940R


  • NcSTAR SFB3940 3-9x40 Airsoft Scope
  • Lens Covers
  • Weaver Rings
  • Cleaning Cloth


  • Multi Coated Lenses
  • Air gun compatible
  • Fixed power


  • Magnification: 3x-9x
  • Objective dia. (mm): 40.00
  • FOV (feet at 100 yards): 36.6-13.6
  • Eye relief (in): 2.76-3.35
  • Exit pupil(mm): 13.3-4.4
  • Reticle: P4 sniper
  • Net weight(oz.): 16
  • Length (in): 12.2
  • Click value: 1/4 m.o.a
  • Exterior finish: Matte black
  • Lens coating: Ruby
  • Mount included: Weaver style rings

For questions regarding this product please email our friendly customer service team.

Customer Reviews

Overall Raing: 5 Rating 5 out of 5 stars

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Top Customer Reviews

5 Rating

By: Nathan on October 24, 2013

Love this scope it works great on both my rifles with my Mauser sr pro tactical I was hitting dimes from 30 feet away and with my DMr it made a whole lot of difference with the powerful zoom and the right rifle you should have no problem
Not mildot
The windage and elivation can strip out

5 Rating

By: Pedro on July 24, 2013

yes it works on the sd98 some times it fogs up but it still great :]

5 Rating

By: Bryce on June 29, 2013

If you buy this and want to adjust the reticle, there's a nitrogen gas port on the bottom. So if you want this for accurate sniping, buy some gas and a port adapter.

5 Rating

By: Rob on April 29, 2013

great scope, can't wait to put it on my replacement sd98 hopefully

5 Rating

By: That Random Guy on July 13, 2012

Awesome scope works amazingly with sprind sd98

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