UTG ACCU-SYNC 25.4 mm Scope Mounts for Picatinny – 37/50 mm Offset

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UTG ACCU-SYNC · 25.4 mm · Picatinny
The right variant matters: Cantilever mount or offset individual rings
This product family fits scopes with 25.4 mm / 1-inch main tube. Three variants are one-piece cantilever mounts with 50 mm forward offset; AIR122S, on the other hand, is a pair of separately positionable high-profile rings with 37 mm offset.
The benefit: You choose not only color and height but the geometry that fits eye relief, available Picatinny space, and clampable main tube area.
Match variants now

Our honest assessment

The variants follow two different designs: AIR11850, AIR12250, and AIR12250AR connect both ring halves on a common 100 mm base and offset the optic by 50 mm. AIR122S consists of two separate rings; each ring has a 33 mm base and the ring center is offset by 37 mm.
All offered variants are screwed and are not quick-release versions. Those who want to remove regularly without tools will find suitable QR alternatives further below.

Fits well if … / Fits less well if …


Fits well if …
your scope has a 25.4 mm / 1-inch main tube, a suitable Picatinny rail is available, and you want 50 mm cantilever offset or two separately positionable 37 mm-
Offset rings when you specifically need them.


Not really suitable if …
your main tube measures 30 or 34 mm, you use a dovetail/swallowtail rail without a matching adapter, you expect tool-free quick change, or mounting height and objective clearance haven’t been measured yet.

Purchase check: five measurements before ordering


1. Main tube
All four variants clamp exclusively 25.4 mm or 1 inch. The objective diameter alone doesn’t say anything about the main tube diameter.


2. Rail
The base is designed for MIL-STD-1913 Picatinny. According to Leapers, the cantilever versions require 11 consecutive slots; AIR122S can be positioned separately as a pair of rings.


3. Clamping zone
For the cantilever variants, 60 mm inner and 110 mm outer ring spacing is fixed. Turret block, magnification ring, and tube transitions must not lie within the 25 mm wide ring shells.


4. Height and clearance
Medium offers 18 mm saddle height and 31 mm center axis height. High offers 22 mm saddle height and 35 mm center axis height. Protective caps, barrel, and handguard must remain truly free.


5. Offset
50 mm cantilever provides more forward positioning on a common base. AIR122S offers 37 mm offset with free ring positioning. If you only need 34 mm on a block mount, check the ACCU-SYNC-34-mm alternative.

What the features practically mean


One-piece 50 mm base variants
AIR11850, AIR12250, and AIR12250AR define ring spacing and parallelism by design. This makes alignment easier but requires sufficient continuous rail surface and a suitable straight main tube area.


AIR122S as ring pair
The two separate high-profile rings allow more flexible longitudinal positioning. Both rings must sit cleanly on the same rail level and be evenly aligned.


6061-T6 aluminum
The 50 mm cantilever variants are CNC-machined and anodized from 6061-T6 aluminum. Relief cuts reduce material without adding extra quick-release mechanisms.


Torx clamping and recoil stops
Square recoil stops engage form-fittingly in Picatinny grooves. Leapers specifies 25 in-lbs for the ring tops and 35 in-lbs for the side mounting plate.

Typical misbuys, disadvantages, and limits

“50 mm” is not the mounting height: it refers to the cantilever offset. Saddle height is 18 or 22 mm depending on the variant.
High is not automatically better: extra clearance can worsen cheek weld. Medium is more sensible if objective and protective cap remain free and head position is more natural.
The maximum objective outer diameter is only a geometry guide: plan conservatively with 60 mm for AIR11850; 69 mm is stated for High. Protective cap, rail, barrel, and handguard can limit real clearance earlier.
No blanket Weaver approval: manufacturer sites specify Picatinny. Weaver rails that look similar can differ in groove width, spacing, and clamping surface.

Mounting, checking, and care

1. Fully unload system, secure, and rest stably. Check tube, ring shells, and rail for grease-free and undamaged condition.
2. Position mounting in the designated Picatinny grooves. Let recoil stops fully rest on one groove edge; do not clamp cantilever over movable rail parts.
3. Insert scope, set eye relief in natural hold, and align reticle. Watch for even gaps at the ring tops.
4. Tighten ring tops crosswise and in small steps. Leapers recommends 25 in-lbs on top and 35 in-lbs on the side plate, each with the appropriate T20 tool.
5. After mounting and first use, check seating marks, screws, clearance, and point of impact. Visible damage, crushed tubes, or shifting marks are a stop signal.

Instructor and user tips


Eyes ab
stand reproducible adjustment
Go into the stop multiple times naturally, without stretching your head forward or backward. Only when the full field of view appears repeatedly, secure the ring position and reticle finally.


Check height with real protective cap
Don’t just measure the bare objective tube. The actually used cap and the deepest point of the objective must remain free over the rail, barrel, or handguard.


Document torque
Note the used variant, slot position, and torque in the setup. This way you can later distinguish whether point-of-impact changes come from the mount, optic, or ammunition.


Check after conversion
Even with the same slot position, a control group is mandatory. A screwed mount does not guarantee automatic point-of-impact retention after disassembly.



Useful alternatives in the ACCU-SYNC system


34 mm instead of 50 mm offset
The ACCU-SYNC 1-inch Cantilever mount with 34 mm offset is the closer choice when less forward offset is sufficient.


Single rings with quick release
The ACCU-SYNC 1-inch QR rings offer free ring positioning and locking quick-release levers, but no cantilever offset.


QR Cantilever with 34 mm offset
The ACCU-SYNC QR offset mount AIR11834Q combines a one-piece base with quick release. It is not a substitute if 50 mm offset is strictly required.



Further selection

UTG range: more model-related mounts and tools
Mounts & accessories: compare by interface, tube diameter, and build height
Shooting sports & range: suitable components for a controlled training range


Technical data with practical interpretation


AIR11850 · Medium · Black
One-piece cantilever mount; 25.4 mm; 50 mm offset; 18 mm saddle height; 31 mm center axis height; 100 mm base; 150 mm total length; 60 mm inner ring spacing; 143 g according to Leapers. Plan conservatively for an objective outer diameter of max. 60 mm.


AIR12250 · High · Black
One-piece cantilever mount; 25.4 mm; 50 mm offset; 22 mm saddle height; 35 mm center axis height; 100 mm base; 150 mm total length; 60 mm inner ring spacing; max. 69 mm objective outer diameter according to manufacturer; 150 g.


AIR12250AR · High · Red
Technically the red high-profile cantilever version: 25.4 mm; 50 mm offset; 22 mm saddle height; 35 mm center axis height; 100 mm base; max. 69 mm objective outer diameter according to manufacturer; 150 g.


AIR122S · High · Black
Pair of two separate offset rings; 25.4 mm; 37 mm offset; 22 mm saddle height; 33 mm base length per ring; 25 mm ring width; max. 69 mm objective outer diameter according to manufacturer; 5.08 oz or about 144 g per pair.



Weight note: The stated values are pure product weights. A package or shipping weight can be higher due to packaging and accessories; for weight planning in the setup, the product weight of the chosen variant counts.


Delivered scope

The version selected in the selection field is delivered: a one-piece cantilever mount for AIR11850, AIR12250, or AIR12250AR or a pair of separate offset rings for AIR122S. The listed accessories also include a T20 Torx wrench as well as a #8-32 socket-head and a #8-32 flat-head T20 screw.
Scope, Picatinny rail, torque wrench, and other mounting tools are not included.


FAQ on selection and mounting
Are all four variants one-piece cantilever mounts? No. AIR11850, AIR12250, and AIR12250AR are one-piece 50 mm cantilever mounts. AIR122S is delivered as a pair of separate high-profile rings with 37 mm offset.
What do 37 mm and 50 mm stand for? The measurements indicate the offset of the ring center relative to the respective base, not the build height. The saddle height is 18 mm for Medium and 22 mm for High.
Does a scope with 30 mm tube fit? No. These variants are designed for 25.4 mm or 1 inch. For 30 mm or 34 mm w
A correspondingly sized mount is required.
How much Picatinny space do the Cantilever variants need? Leapers specifies 11 contiguous slots. Additionally, the bolt, charging handle, ejection port, and other controls must remain free.
Which height is right? Medium is preferable if the objective lens with protective cap remains free and the cheek rest fits. High adds 4 mm more saddle height but can worsen head position. Therefore, measure on the actual setup.
What torque values does UTG specify? Leapers recommends about 25 in-lbs for the ring tops and 35 in-lbs for the side mounting plate. Tighten the ring tops gradually in a cross pattern and use only a properly fitting T20 bit.
Are these variants quick detachable? No. They use Torx screws. For tool-free changes, the linked ACCU-SYNC-QR rings or the QR-Cantilever version are the more suitable design.

Black-Raptor purchase decision
First choose geometry, then color
25.4 mm tube, Picatinny area, height, and offset must all fit together. Once these four points are clarified, the choice is simple: 50 mm Cantilever for fixed block geometry or AIR122S for two separately positionable 37 mm offset rings.