GLOCK TACTICAL LIGHT GTL-52, incandescent light, RED laser, IR laser and IR light

GLOCK 

TACTICAL LIGHT 

GTL-52

 Incandescent light, 

RED laser, 

IR laser 

and 

IR light

Read more here:

http://eu.glock.com/english/acc_gtl51.htm

OAKLEY STANDARD ISSUE SI BALLISTIC M FRAME 3.0 DARK BONE / GREY

OAKLEY STANDARD ISSUE 

SI BALLISTIC 

M FRAME 3.0 

DARK BONE / GREY

Read more here:

http://www.oakleysi.com/Root/Eyewear/Ballistic/SI-Ballistic-M-Frame-3-0/p/700285606767

Comparison between MK.I and MK.II Laser Devices DBAL-A2 AN/PEQ-15A Dual Beam Aiming Laser

Comparison 

between 

MK.I and MK.II 

Laser Devices 

DBAL-A2 AN/PEQ-15A 

Dual Beam Aiming Laser

If You compare both, there is lower amount of material on the heads, around turrets and on the bottom.

Few grams, but its less on rifle nose, so it counts...

Also around output/mode turrets are dimples for turret bearing, so they possitively clicks in place when turned.

Mk.III is even more weight saving and Mk.IV has new QD mount which You know from DBAL-I2