Surefire's DSF Shotgun Forend Weaponlights are now available. They emit 200 lumens and 600 lumens and run for 3 hours.
They are available for Remington 870, Mossberg 500, 590, Benelli M1, M2, Winchester 1200 Defender, 1300 Defender, FN F-12 SPX
Price is $375
From: Surefire