M-BRACE SCOPE MOUNT

OVERVIEW

Effortless anti-cant scope installation
Recoil Proof Non-Marring Scope Grip
Serrated Accessory Interface
Multi-Position Level Vial
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

M-Brace Mount
Bubble Level and mounting screw, M5 x 16mm T25 Torx.
Mounting instruction sheet

ATTENTION VINTAGE SCOPES: We recommend a lower starting torque value of 40 in-lbs. to mitigate potential deformation to the tube.

Mounting Instructions

DETAILS

M-BRACE is derived from a first principle approach to defining and solving the problem of securely attaching high-precision optical devices to a high-precision rifle.

The M-BRACE Scope Mount boasts a serrated interface to which the M-BRACE LRF (Laser Range Finder) Mount can be securely attached.

Even under heavy recoil, the serrations immobilize the connection between the scope mount and the LRF mount so you can be sure that alignment between your scope and ranging or targeting device remains uncompromised.

Inspired by Hirth couplings used for high power transmission in gas turbines and for high precision assembly in machine tools, the serrations are machined into both sides of the strongest portion of the M-BRACE Scope Mount. In fact, the placement of the serrations takes full advantage of the structural system resulting from cooperation among the mount, receiver, and scope. Thus, recoil forces are symmetrically and efficiently transferred through this structural system and distributed into the rifle receiver.

The distribution of recoil forces is important because they can be quite high and significantly stress the scope mounting system. Consider the Vortex Impact 4000 weighing in at 450 g. (16 oz). The preferred mounting location of this device is above the forward end of the scope. Due to inertia and recoil, forces can easily exceed 900 N (200 lbs). If these forces are to be transferred through the scope mount and into to the rifle, well-designed connections and symmetry should be used to distribute and to minimize the resulting stress within the mount and within the scope.

The recoil forces are not concentrated in any one portion of the M-BRACE Scope Mount, or even worse, into a single scope ring cap, as is the case with competing products. Nor are they applied asymmetrically into the mount as is the case with another competitor.

No other system currently available provides for a connection between a scope mount and an LRF mount as securely and effectively as does the M-BRACE. Nothing is even close.

The M-BRACE Scope Mounting System embodies an evolutionary step taken from our successful M10 Scope Rings that have served thousands of riflemen for over a decade. It is an engineered product standing alone in stark contrast to the conveniently designed gadgets for which engineering was never a consideration.

Torque spec: 6.2 Nm (55 in-lbs) on scope clamp and rail mount screws.

Torque spec: 3.4 Nm (30 in-lbs) on bubble level screw.

DIMENSIONS

Dimensions are in mm.

Height is either 32mm or 38mm depending on the size you choose.

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. (Weight does not include LRF mount, Pic rail or other not-included accessories).

If the bubble level with fastener is removed from the mount, subtract 0.3 oz or 8 g from the values shown below.

	32mm Height	38mm Height
30mm Diameter	8.7 oz 246 g	11.3 oz 320 g
34mm Diameter	10.7 oz 304 g	11.6 oz 330 g
35mm Diameter	10.9 oz 308 g	11.8 oz 335 g
36mm Diameter	10.8 oz 307 g	11.8 oz 334 g
40mm Diameter	- -	12.0 oz 340 g

AVAILABLE SIZES

	32mm Height	38mm Height
30mm Diameter	0 MOA 10 MOA 20 MOA - - -	0 MOA 10 MOA 20 MOA - - -
34mm Diameter	0 MOA 10 MOA 20 MOA 30 MOA 45 MOA 60 MOA	0 MOA 10 MOA 20 MOA 30 MOA - -
35mm Diameter	0 MOA 10 MOA 20 MOA 30 MOA - -	0 MOA 10 MOA 20 MOA 30 MOA - -
36mm Diameter	0 MOA 10 MOA 20 MOA 30 MOA - -	0 MOA 10 MOA 20 MOA 30 MOA - -
40mm Diameter	- - -	- 25 MOA 45 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.