A.R.M.S. #18 M21/M14 Scope Mount Foundation (#18)
Since its introduction to the marketplace in 1989, this foundation has maintained its reputation as being the best mounting systems for the M21/M14 Rifle
The A.R.M.S.® #18 offers interchangeability of Day & Night Vision, with an ultra low profile and the A.R.M.S., SWAN ® aka Mil-Std. 1913 Rail
Made of 8620 case hardened steel
Precision fit to the base integral with the receiver
Two attaching points plus a third contact point for ultimate stability