PEEP SIGHT
Source: 567
Peep sight. An adjustable piece, pierced with a small hole to peep through in aiming, attached to a rifle or other firearm near the breech; — distinguished from an open sight.
Source: 567
Peep sight. An adjustable piece, pierced with a small hole to peep through in aiming, attached to a rifle or other firearm near the breech; — distinguished from an open sight.