Date: 28/3/2023 20:1


UTG 11mm (3/8") Dovetail to Weaver Adapter, 2pcs

4.5 (158 reviews)
UTG 11mm (3/8") Dovetail to Weaver Adapter, 2pcs

UTG 11mm (3/8"), Image 1UTG 11mm (3/8"), Image 2UTG 11mm (3/8"), Image 3UTG 11mm (3/8"), Image 4UTG 11mm (3/8"), Image 5

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Sold & shipped by PyramydAir



  • 11mm  (3/8") Dovetail to Weaver Adapter
  • Insert into Weaver or Picatinny rings so they'll fit the smaller 3/8" or 11mm rails and dovetails often found on airguns and rimfire guns
  • 1" long
  • .93" wide
  • .24" high
  • .18 oz
  • 2 pieces

  • If your air gun or rimfire gun has a scope dovetail that measures either 11mm or 3/8" (approx. 9.5mm), you can use this lightweight aluminum adapter to attach your Weaver and Picatinny rings or mount to your smaller 11mm and 3/8" dovetails.

    This clever device clips into the base of your Weaver or Picatinny mount (both 1-pc mounts and 2-pc mounts), thereby reducing the size of the clamping jaws on the mount! A very easy way to make your mounts more useful for a wider range of guns. In fact, you can leave your optics in the mounts and move them from gun to gun! You'll still have to resight the gun after attaching the scope, but you won't have to reset or retighten the scope in the mount.

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Item Code: MNT-DT2PW01 [PY-A-4148]

Average Customer Review

4.5 (158 reviews)
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2.0 2.0

2.0 2.0

Verified Purchase

Things I liked:

Offset stop pin allows some fore-back positioning of mounts by flipping adapter around. Otherwise see additional comments.

Things I would have changed:

Tighter tolerance fit of alignment pins. Larger diameter and longer stop pin.

What others should know:

Do not work well for me with dovetails cut into round top receiver. Alignment pins are a loose/sloppy fit in adapter halves. On round top receiver narrow half lacks support below and rotates inward when tightened reducing engagement with dovetail groove. As result when tightened to spec or subsequently even tighter scope and mount in either case will pop off rifle from springer recoil or if bumped. With support from below on flat topped dovetail receiver the adapters probably would be fine. Also note stop pin is very small diameter and short. Pin adjusts to either minimally engage with receiver or minimally thread into adapter, not long enough to engage both well.

4.0 4.0

5.0 5.0

Verified Purchase

Things I liked:

Worked well on grooved receiver

Things I would have changed:

If you are not mechanically adept, it may take you a while to figure out how to use them. Instructions would be nice

What others should know:

See above. While mine worked fine, I'm not sure they are installed according to the design

5.0 5.0

5.0 5.0

Verified Purchase

Things I liked:

Probably the best invention of the 21st Century for active gunners! Having a few older dovetail pieces and with that attachment choice almost obsolete in these tactical times, this transition piece gives more flexibility for various newer pieces to be attached. The price point is just right to have extra in the gun box for spares.

Things I would have changed:

Nothing I can think of at this time.

What others should know:

Sometimes these adapters are a little stiff out of the blister card so a few squeezes (or an extra small drop of oil to the springs) to limber them up will help when inserting in the piece to attach on the dovetail.

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  • bill from USA asked:

    Will these work on the Diana Chaser to mount a red dot sight

    • Adam from USA answered:

      Yes, but you will need to remove the rear sight.

  • Bill from USA asked:

    Do these work with the crosman steel breech or not? Some say they do- others say they dont!

    • Alberto from USA asked:

      I'm intending to buy the Crossman 2240XL (Steel Breech model Crosman 2240XL CO2 Air Pistol,...) that comes with 11mm dovetail and I saw a suggestion of optics... the CenterPoint Optics 32mm Open Reflex Sight (PY-A-4470) which comes with an "integral weaver mount". Would this UTG adapter(PY-A-4148) be the correct option to be able to attach the mentioned optics on the 2240xl?

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