XL-4GIR-ML ne vale la pena ?

[avalon]

Premesso che di sti cosi ce ne capisco molto poco potete darmi un vostro parere su questo aggeggino ? dato che costa poco meno di 190 € ne vale la pena ??

grazie in anticipo

La descrizione dell'oggetto

Ho trovato XL-4 Combat Laser Designator su ebay


XL-4 Combat Laser Designator
Description
Constructed from Aluminum Alloy (6061-T6), Hard oxidation.
Fits all Picatinny and NATO 1913 Rails
No tools required
Proven MIL-SPEC mount locks the accessory to the weapon rail
Quick release system allows the user to instantly attach and detach the laser
Supplied with a single AA battery, remote cable with pressure pad (please specify length if your requirements are different from standard option)
Windage and elevation adjustment knobs are protected from impact
Waterproof testing, sock-proof and weapons recoil-proof.
Use military standard high quality laser modules.
XL-4 Laser Designator Model Family(s):
XL-4GIR-ML, Green Laser and Infrared Laser
XL-4RIR-ML, Red Laser and Infrared Laser
XL-4GR-ML, Green Laser and Red Laser

Specifications:

XL-4GIR-ML Green laser Infrared laser Tactical Laser Designator
Material/TD] [TD]Aluminum Alloy (6061-T6)
Green Laser Wavelength/TD] [TD]532nM
Green Laser Power/TD] [TD]Email to me
Green Laser Working Temperature/TD] [TD]-10℃~+50℃
Infrared Laser	830nM
Infrared Laser Power	Email to me
Infrared Laser Working Temperature/TD] [TD]-10℃~+50℃
Laser Dot Size	22mm@30m
Net Weight/TD] [TD]280g
Dimensions/TD] [TD]70(L)x54(W)x20(H)mm
Battery Type/TD] [TD]1pcs AA 1.5 Volt Battery
Rail Type/TD] [TD]MIL-STD-1913 Picatinny Rail
Dimension of Package/TD] [TD]52x43x40cm