Metal housing 
Fixing clip position selection
2-point quick bayonet mounting
Guarantee of POI stability during multiple assembly and disassembly of the devide
Insusceptibility to temperature changes
Easy installation
Increased service durability
Protective cover supplied in the package
Compatible with wide range of day optics with the 50 mm objective lens diameter

Related equipment: Forward DFA / Core

What’s in the box

DN 50 mm Adapter | Cover | Hex-nut wrenches | Set of inserts (51.6 mm, 53.4 mm, 55 mm, 56 mm, 57 mm, 58 mm, 59 mm) | User Manual | Warranty Card

(Cover Ring Adapters) Purpose


Cover ring adapters are special mounting units, that enable installation of digital or/and thermal imaging attachments in front of the objectives of day optic devices (riflescopes, spotting scopes and binoculars). Adapters are supplied with a set of insert rings (the choice of the insert ring is defined by the outer diameter of the objectives housing of optic device). After installation the adapter stays constantly on the objective of optic device which allows installing the thermal of digital attachment in front of the objective swiftly. During the day when the attachment is not used, adapter serves as the mount for the protective cover (included in the package), which protects the lens of day optics.


(Cover Ring Adapters) Easy mounting

Easy mounting

Adapter design does not require the use of special tools (dynamometrical wrench) during the installation of adapter on the housing of day optics, all operations can be performed with hex-nut wrenches included in the package. Adapter is fixed by pressing the fixing clip. The fixing clip rotation is in horizontal plane (parallel to optic axis of day riflescope and attachment), thanks to that the rotation of adapter on the riflescope after the final setting and alignment is eliminated. There exists a constructive possibility to install the adapter in positions “fixing clip on the right” and ”fixing clip on the left”.

(Cover Ring Adapters) Metal body

Metal body

Design of the Cover Ring Adapters includes a wide variety of parts made from different metals. The housing is produced from an aluminum alloy using the method of milling and is characterized  by high firmness  and light weight. Screws, spring, fixing clip and pins are made from steel.


(Cover Ring Adapters) Insert rings

Insert rings

In order to install adapter on the housing of the day optic device (spotting scope, binoculars or riflescope) it is necessary to use one of the insert rings supplied in the adapter package. The rings are molded from plastic which ensures safe contact with optic device as well as the high reliability of adapter installation (firmness, evenness of placement).

(Cover Ring Adapters) Insusceptibility to temperature changes

Insusceptibility to temperature changes

Temperature changes do not influence the correct work of adapter (e.g.: adaptor installed in the room can be confidently used in the conditions of big frost without any installation corrections).


(Cover Ring Adapters) Service durability

Service durability

Adapter is designed for a long term operation even if used on optic riflescopes installed on big caliber weapons. High exploitation qualities mean that the adaptors can be used in the temperatures exceeding those allowed for digital and thermal attachments, durability and overall reliability of individual parts of the adaptor.