The UNIVERSAL Open Holster for 20mm Rail ROTO360 by Amomax is an innovative solution designed for users with optics-equipped pistols. Unlike traditional models, this rigid polymer holster features an open design that does not enclose the slide, anchoring exclusively to the lower Picatinny/Weaver rail and the trigger guard. Highly customizable, it is compatible with dozens of platforms (Glock, Hi-Capa, P320, M9A1) and is ideal for shooters who mount Red Dots or RMRs on their replicas.
This is an approximate conversion table to help you find your size. If you have already purchased an item from our brand, we recommend you select the same size indicated on its label.
| International | XS | S | M | L | XL | XXL | XXXL |
|---|---|---|---|---|---|---|---|
| Europe | 32 | 34 | 36 | 38 | 40 | 42 | 44 |
| US | 0 | 2 | 4 | 6 | 8 | 10 | 12 |
| Chest Circumference (inches) | 33-35" | 36-38" | 39-41" | 42-44" | 45-47" | 48-50" | 51-53" |
| Chest Circumference (cm) | 84-89 | 91-97 | 98-104 | 107-112 | 114-119 | 122-127 | 129-134 |
| Waist Circumference (inches) | 28" | 30" | 32" | 34" | 36" | 38" | 40" |
| Waist circumference (cm) | 71 | 76 | 81 | 86 | 91.5 | 96.5 | 101.5 |
LOWA FOOTWEAR SIZE CHART
SIZE SELECTION:
THE SIZES IN THE DROP-DOWN MENU ARE UK SIZES (ENGLISH)
conversion chart: UK size - (IT size) - size in mm
Size 6.5 (40) 257mm
Size 7 (40 3/4) 262mm
Size 7.5 (41.5) 266mm
Size 8 (42) 270mm
Size 8.5 (42.5) 274mm
Size 9 (43 1/4) 278mm
Size 9.5 (44) 283mm
Size 10 (44.5) 287mm
Size 10.5 (45) 291mm
Size 11 (46) 295mm
Size 11.5 (46.5) 300mm
Size 12 (47) 304mm
Size 12.5 (48) 308mm
Size 13 (48.5) 312mm
NEED ADVICE ON CHOOSING A SIZE?
Take one of your sneakers and look at the size in mm or cm, look at the diagram above to see what it corresponds to and order your size!
e.g., your sneaker is 27.2 cm long? Great, the closest and most correct size will be: "TG 8.5 (42.5) 274mm", in the purchase menu select size 8.5UK!
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The evolution of dynamic shooting and airsoft has led more and more players to mount micro Red Dots on their pistol slides. The problem? Classic holsters no longer close. The Amomax Universal Open Holster solves this obstacle at its root. Its ingenious design leaves the upper part of the slide completely free, allowing for smooth drawing and re-holstering of replicas equipped with any type of optic or raised sights.
The locking system focuses on the lower part of the weapon, gripping the standard 20mm rail and the trigger guard. To make it truly "universal," Amomax has included a 3-way adjustment system. A large side screw allows the upper block to be raised or lowered; the front partition adapts to the shape of the trigger guard; finally, thanks to three interchangeable inserts included (Small, Medium, Large), the holster can be shimmed to perfectly embrace trigger guards of different thicknesses, from the thin ones of 1911s to the more squared and massive ones of Glocks or P320s. The back houses the classic ROTO360 dial, which allows you to orient the holster at your preferred angle.
Technical Specifications
INCOMPATIBILITY Warnings
This holster is NOT compatible with the following platforms:
Advantages and Features
Package Contents
Pro Tips:
Setup requires patience: This holster is an engineering marvel, but it's not "Plug & Play" the first time you take it out of the box. Since it needs to adapt to dozens of different pistols, take 10 minutes at home before going to play. Take your replica, disassemble the block, and test with the 3 included shims (S, M, L) until you find the one that perfectly embraces the trigger guard without it wiggling or getting stuck. Once you find the right height with the large side screw, tighten everything. You will have created a custom fit for your pistol!
Attention to the 20mm Rail (Iron Rule): I repeat this because it's the most common mistake: this holster grips the rail under the barrel. If you have a beautiful old-school Beretta M9 or a smooth World War II M1911 (without the serrated tactical rail underneath), this holster has nothing physical to grip onto and the weapon will fall out. Furthermore, since it occupies the rail, you cannot mount flashlights or lasers under the pistol while using this holster (for that, you need the Omnivore model!).
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