1
Da Keng: Removable optical sight mount adapted for use with M14, M1A and similar rifles and method for removably attaching an optical sight to a rifle. J A McKinney Jr, April 13, 2010: US07694450 (28 worldwide citation)

A removable optical sight mount adapted for use with a military-style rifle such as an M1A provides a centrally aligned support projecting well to the rear for use with sights having very limited eye relief. The removable sight advantageously uses a three point lock up or attachment to the rifle, th ...


2
Da Keng: Removable optical sight mount adapted for use with M14, M1A and similar rifles and method for removably attaching an optical sight to a rifle. Jones Tullar & Cooper PC, March 27, 2008: US20080072471-A1

A removable optical sight mount adapted for use with a military-style rifle such as an M1A provides a centrally aligned support projecting well to the rear for use with sights having very limited eye relief. The removable sight advantageously uses a three point lock up or attachment to the rifle, th ...