AIR BRACE CANTILEVER SCOPE MOUNT

AIR BRACE is the industry’s stiffest ultra-light cantilever scope mount. Taking our M-Brace hinge technology to Sub 4 oz. configurations.

$ 349.00

Scope Tube Diameter
- 30mm
- 34mm
- 35mm
- 36mm
Scope Mount Height
- 38mm-1.50in
Inclination Angle
- 0 MOA - 0 MIL
- 20MOA-5.8MIL

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Scope Mount Height: 38mm-1.50in

GENERAL INFO
DIMENSIONS + WEIGHT

OVERVIEW

Simple and easy no-roll scope mounting
Recoil Proof No-scratch Scope Grip
Excellent Return-To-Zero
Designed to fit Picatinny (MIL-STD-1913) rails.
CNC Machined High-Strength 7075 Aluminum
Proudly Made in the USA

WHAT'S IN THE BOX

Air Brace Mount
Bubble level (assembled)
Mounting instruction sheet

DETAILS

Optimized for AR platforms, AIR BRACE is the industry’s stiffest ultra-light cantilever scope mount.

Incredibly light at less than 4 ounces, the AIR BRACE punches far above its weight thanks to its efficient structural design.

The cantilevered tubular section of the AIR BRACE maximizes its area moment of inertia (the property that tells us how strong and stiff a beam is) while prioritizing a lightweight and compact design. Unlike competing products in which the scope supports the forward ring more than that ring supports the scope, the forward ring of the AIR BRACE actually supports the scope because its cantilevered section more effectively bears shear stress between the uppermost and lower most portions of the mount-scope structural system. The AIR BRACE was designed to cooperate with the scope to create a structural system that is greater than the sum of its parts.

Like our M-BRACE rings and mounts, the AIR BRACE scope clamps exhibit symmetry about the vertical plane which eliminates annoying scope roll when tightening the screws making scope installation the easiest available. This also eliminates residual torsion (twist) in the installed scope which preserves the flatness of the mount surface that contacts the top of the rail, and thus improves return-to-zero performance should the mounted scope be removed and reinstalled on the gun.

The AIR BRACE scope clamps have relief cuts where they meet at 12 o’clock that disengage the clamp edge from the scope to reduce the risk of marring the scope, and in most cases eliminate it.

All AIR BRACE screws are made in-house from 17-4 stainless steel offering excellent corrosion resistance and high strength. Recommended torque for rail and scope screws is clearly engraved on the mount. And in addition to looking cool, the rail clamp screws can be tightened using any of the following: 4mm or 5/32” hex keys and 8mm or 5/16” wrenches. The scope clamp screw uses a 3mm hex key.

Expertly machined in-house from 7000 series aluminum alloy using state of the art CNC machines, the AIR BRACE is subsequently anodized per MIL-A-8625 TYPE II.

DIMENSIONS

Dimensions are in mm. Inch conversions in brackets.

WEIGHT

Weight (ounces) and mass (grams) listed for sizes available. Numbers are for a complete mount with bubble level weighed on a scale with 0.1 oz resolution.

	38mm Height
30mm Diameter	3.9 oz 110 g
34mm Diameter	4.0 oz 115 g

AVAILABLE SIZES

38mm - 20 MOA in stock!

38mm Height

30mm Diameter

0 MOA

20 MOA

34mm Diameter

0 MOA

20 MOA

HEIGHT

Important Notes:

Below are the minimum height recommendations for clearance.
Most ARs are better suited for a 38mm height mount.
Some chassis have a full length picatinny rail, which give them an AR-like profile. Please refer to the AR column if this applies to your build.
For actions with a 90 degree bolt rotation, when the M-Brace is mounted to the far aft recoil slot in the picatinny rail, there is a potential for interference. This issue can be avoided by moving the mount forward 1-2 slots in the picatinny rail or by sizing up.
Arken scopes require a 38mm/1.5" height mount.
Kahles K525i DLR w/oversized parallax ring will not fit the M-Brace Mounts.

MINIMUM HEIGHT RECOMMENDATION

PENNY TEST FOR REPLICATING MOUNT HEIGHT

To estimate fit, stack pennies on top of your scope rail as pictured below.

The number of pennies to stack is determined by tube diameter and height. Please reference the table below.

Test fit using scope caps and/or a sunshade if you plan to use them.

This test does not account for inclination angle. The height of the aft ring will vary slightly depending on the inclination you choose.

	30mm tube	34mm tube	35mm tube	36mm tube
32mm height	11 pennies	10 pennies	9.5 pennies	9 pennies
38mm height	15 pennies	14 pennies	13.5 pennies	13 pennies

INCLINATION ANGLE

Information below is based on a 100 yd. zero.

Note: The value we recommend should be greater than or equal to the sum of the inclination angles of your picatinny rail and your M-Brace mount.