Pulsar FN Cover Ring Adaptor

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  • Pulsar FN 50mm Cover Ring Adaptor
  • Pulsar FN 50mm Cover Ring Adaptor
  • Pulsar FN
  • Pulsar FN
  • Pulsar FN


The Pulsar FN Cover Ring Adaptor is a unique mounting unit that enables installation of digital or thermal scope attachments in front of riflescopes, spotting scopes and binoculars. Adapters come with a set of insert rings. After installation, the adapter constantly stays on the objective of the optic device which allows you to install the thermal or digital attachment in front of the objective swiftly. During the day when the attachment is not used, the adapter serves as the mount for the protective cover, which protects the lens of day optics.

There's 3 sizes to choose from, 42mm / 50mm 56mm

Easy mounting

Adapter design does not require the use of special tools (dynamometrical wrench) during the installation of the adapter on the housing of day optics; all operations can be performed with hex-nut wrenches included in the package. The adapter is fixed by pressing the fixing clip. The fixing clip rotation is in a horizontal plane (parallel to the 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”.

Metal body

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

Insert rings

To install the adapter on the housing of the day optic device (spotting scope, binoculars or riflescope), it is advised to use one of the insert rings that is supplied with the adapter package. The rings are moulded from plastic which ensures safe contact with the optic device as well as the high reliability of adapter installation.

Temperature changes

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

Service durability

The adapter is designed for a long-term operation even if used on optic riflescopes installed on big calibre 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.

Pulsar FN Specifications

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

Related equipment: Forward F

What's in the box

FN 42 mm Adapter | Cover | Hex-nut wrenches | Set of inserts (45.5 mm, 46 mm, 46.5 mm, 47 mm, 48 mm, 49 mm, 50 mm) | User Manual | Warranty Card

FN 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

FN 56 mm Adapter | Cover | Hex-nut wrenches | Set of inserts (60 mm, 61 mm, 62 mm, 63 mm, 64 mm, 65 mm) | User Manual | Warranty Card

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