Rct. Olivia M. Ruvalcaba, Platoon 4013, Oscar Company, 4th Recruit Training Battalion, practices the sitting position March 1, 2016, on Parris Island, S.C. Ruvalcaba ...

The Army and Marines, in adopting the new XM7 rifle to replace the M16 and M4 rifle and carbine, have apparently phased out iron backup sights, putting all their chips on a scope called the XM157 ...

For the first time in three years, Army recruits will have to pass a marksmanship test during basic training using only the backup iron sights for the M16 rifles and M4 carbines, officials said.

The results are pretty interesting. Here's Andrew's Review: Back up iron sights, or BUIS, are a popular accessory for AR and M16/M4-platform rifles, with the primary reason for their purchase and ...

But the advent of modular rail accessory systems and the growing use of optics over iron sights added more weight. ... The M16 lacks maneuverability compared to the M4 and other weapons.

It teaches Servicemembers how to engage and destroy targets up to 600 meters with the M4 or M16 rifle, Back-up Iron Sight and Advanced Combat Optical Gunsight. "Before coming to this ...

The M16 was great. It fit me well. I loved the slight recoil, and it was easy to assemble and reassemble. I was good with the A2 and A3 out to 300 meters with iron sights on the range. This was ...

With that tenent, Soldiers in basic combat training learn to fire the M16 rifle, or its shorter ... targets as they learned how to zero the iron sights on their rifles, the drill sergeant said.

The iron sights on Ak4Ds are completely removed, as they are practically unusable with the newer stock. ... variations of the M16, SR-25, and AR-10 are a common sight in armories around the world.