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BKL

BKL 263 Double Strap 3/8" & 11mm base Rimfire Airgun Rifle Scope 1"/25mm Mount Rings - High

£46.45
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BKL 263 Double Strap 3/8" & 11mm Dovetail Rimfire Airgun Rifle Scope 1"/25mm Mount Rings - High profile

Top quality, made in the USA mount rings for airgun and rimfire rifles.

Super strong double strap high profile 2 piece mount rings for 25mm / 1 inch tube scopes for fitting on 3/8" and 11mm airgun and rimfire dovetail base rails.

Height - 0.774" - 19.6mm base to bottom of ring equates to maximum scope outer objective casing diameter of 62mm - Most scope outer casing add 7-15mm to the lens size (depending on things like if it is an AO scope, use of flip up caps etc)

Generally these mounts are best suited for scopes with 40-50mm lenses though in some circumstances they are useful for bigger or smaller scopes - but unless you KNOW you have a special application such as a need to clear an iron sight (need higher) or have a raised base (need lower) then the general sizing guide is probably correct. As always, if unsure ask us.
  • Tube diameter: 25mm / 1 inch
  • Fits: 3/8" and 11mm dovetail grooves
  • Overall Length: 1" - 25mm
  • Clamp Length: 1" - 25mm
  • Ring Width: 1" - 25mm
  • Bottom of Mount to bottom of Scope Tube: 0.774" - 19.6mm
  • Weight: 4.4 oz - 123g
  • Finish: Matte Black
  • This item sold as a set of 2 mounts
Manufactured from aircraft grade aluminium on state of the art CNC machinery in Texas, USA

What are the advantages of BKL mounting systems?
1 - Installation is performed easily because there are few components to contend with. BKL uses the same #8-32 screws for both scope ring and base clamps. One 9/64 hex wrench tightens all.
2 - The inside diameter where the rings clamp together is radiused to prevent scope damage.
3 - BKLs clamping system self aligns as it tightens down on 3/8” and 11mm dovetails.
4 - No lapping required.

Do I have to center BKL scope mounts?
No. All of our products center up as the pressure from the clamping system pulls down as it clamps in.


BKL website customer user reviews for related 257 mounts
Used a set of these to mount my Mueller Tactical 8.5-25x40mm scope. Perfect height when used to attach the scope to my vintage, 1966 Browning T-Bolt .22 or Kimber model 82 Government.

I ordered a set of BKL rings to try them after reading good reviews on RFC. I was so happy with them that I just got 2 more sets to replace the rings on my Marlin 883 and Savage MK2. You won`t find a better set of rings for your rimfire rifles than BKL.

This is my second set as the first set was the .977 tall ring. This time I ordered this shorter height to go with the risers to get me to 1.43 inches in height w/o going over 1.50 inches for competition. The BKL rings are mounted on my CZ 452 American and now have arrived at the perfect height I need for my body frame. The aligning of these rings on the receiver is incredible. BKL rings and risers are solid as a rock.

I have mounted 5 sets of the BKL-257 rings on our CZ 452 rifles. They are very good rings and are very well made. The rings fit both 11mm and 3/8" mounting system on the CZ rifles very well. The rings mount very solid. I will use them again.

About BKL - Made in Texas, USA

BKL Technologies, manufacturer of the largest selection of airgun and rimfire scope mounts in the U.S. Our competition-grade scope mounting system includes scope mounts, scope rings, dovetail to weaver adapters, and scope risers that utilize a quick-installing and self-aligning clamping system that fits both 11mm and 3/8" dovetails.

BKL mounts are compatible with popular rimfire manufacturers such as Anschutz, CZ, Feinwerkbau, Marlin, Remington, Savage, Suhl and air rifle manufacturers such as Air Arms, AirForce, Beeman, Benjamin, BSA, Crosman, Daystate, Diana, Gamo and Webley.

See http://www.bkltech.com/ and ask us about any other BKL products you'd like to get

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Brand BKL
Code NW1138
Weight 0.11kg
MPN BKL-263-MB