SureFire FM66 Blue Filter for flashlight 1.47" diameter bezel produces a smooth beam of blue light. Hunters use the blue filter to track wounded game at night because blood stands out more distinctly against foliage when viewed under blue light. The filter is also useful for close range, non-tactical applications - such as map reading -- as it reduces the intensity of light output. Applying thumb pressure to the locking tab releases the cover; a spring mechanism keeps the open cover out of the way by holding it flat against the flashlight. A cam-locking lever of SureFire FM-66 Blue Filter keeps the entire unit securely attached to the Surefire flashlight w/ 1.47 inches diameter bezel.

Features of Surefire FM 66 Blue M2 / 8AN / 8NX Flashlight Filter:

• Fits 1.47" bezels, including SureFire M2 Flashlight, SureFire 8AX Flashlight, and SureFire 8NX Flashlight
• Cam-locking lever keeps filter securely attached to flashlight
• Provides secondary protection to flashlight lens window

Package Contents:

• SureFire FM66 Blue Filter for flashlights with 1.47" diameter bezel (NSN: 5850-01-530-6762 )

SureFire provides NSN (National/ NATO Stock Numbers) for numerous Flash Lights, Tactical Weaponlights, Flashlight Accessories, and some other Sure Fire products.

Government National Stock Number (NSN Number) for Sure-Fire FM66 Blue Beamfilter for 1.47" Bezel (M2, 8AX, 8NX Flashlights ) is: NSN 5850-01-530-6762

To see the list of all SureFire NSN Flashlights & Flash Light Accessories please visit Surefire NSN National/ NATO Stock Numbers page.

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Sure-Fire FM66 Blue Beamfilter for 1.47" Bezel (M2, 8AX, 8NX Flashlights ) Rating & Reviews