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BKL288 120 MOA Adjustable Rifle Scope HIGH Mount Ring 9-11mm Dovetail 1" Ring

Huge 120 MOA adjust range
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BKL288 120 MOA Adjustable Rifle Scope HIGH Mount Ring (21mm base to ring bottom)
For 9-11mm Dovetail and 1"/25mm Scope Tubes
The BKL 288 Adjustable Mount System is a significant improvement over traditional adjustable scope mounts available on the market today

Lower profile than usually achievable in an adjustable mount

Huge 120 MOA (2 degree) Adjustable range = Way more than most will ever need. Ideal for situations where the scope has run out of elevation or for barrel droop situations on rifles like RWS Dianas
11mm dovetail side rails also include screw threads for screw in bubble level fitting
Suitable broadly for scopes 40-56mm lens - but see scope clearance guide below especially if you have an AO scope with 40mm or larger lens.

Scope Tube Diameter: 1 inch - 25.4mm
Mount Rail:  3/8" and 11mm dovetail
Mount Type: One Piece
Mount Height: High (0.825" / 21mm base to ring bottom)
Finish: Matt Black
High performance CNC machined aluminium
Patented clamping system
Includes 3 hex wrenches - .050 Allen Wrench, 3/32 Allen Wrench, 9/64 Allen Wrench

Technical Specification
Ring diameter - 1" / 25.4mm
Overall Length: 4.0" /102mm
Clamping Length: 2.5" / 64mm
Ring Width: 0.6" / 15mm
Turret Clearance: 0.180" /4.5mm
Weight: 4.5oz / 126g
Bottom of Mount to Bottom of Scope Tube: 0.825" / 21mm


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.

Calculating scope to rifle body clearance

The way you calculate the clearance is by halving the overall OUTSIDE diameter of your rifle scopes objective lens and then deducting half the rifle scopes body tube diameter.

For scopes with a 1" diameter body tube diameter this would mean deducting 12.7mm and 15mm for scopes with a 30mm diameter body tube.

Note we say OUTSIDE diameter - this means NOT the lens diameter, you need to measure the whole outer casing diameter.

The result gives you the minimum "saddle" dimension - the measure from base of mount to bottom of the ring - the saddle dimension that is stated above.

The amount the saddle dimension is greater than the figure you have calculated is the amount of clearance your scopes objective will be clear of your rifles body. 

Example -

  1. A 1 inch tube scope has an outer case measurement of 60mm.
  2. 60 divided by 2 = 30
  3. 1 inch scope so deduct 12.7m = 17.3mm
  4. So the mount must have a saddle measure (base of mount to bottom of the ring) greater than 17.3mm or else it will ground out on the rifle body.
  5. Here we have 21mm so will be 3.7mm clearance assuming it to be a standard flat base.

Calculating your rifle scopes clearance in this way does assume your dovetail or base is not raised above or below your rifles barrel. Note some rifles with high or adjustable cheek pieces may require higher scope mounts or risers so that your eye is in line with the rifle scope and your head is kept in an upright comfortable position.

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.

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Brand BKL
Code NW1903
Weight 0.19kg
EAN 814136024959
Height 21mm Saddle