aperture sight

aperture sight

[′ap·ə‚chər ‚sīt]
(ordnance)
An irregularly shaped adjustable mechanical item usually integral to a rear sight; it functions as a peephole through which the sight at the opposite end of a gun is brought into view in aiming at a target or object.
References in periodicals archive ?
I dialed the aperture sight to the appropriate mark, settled in, and fired a careful shot at a steel plate 500 yards distant.
It's sort of an '86 action with rustproof metal and a good aperture sight, and at close range its .
The Challenger is a 3-position competition rifle featuring a fully adjustable stock, a 2-stage, adjustable match-grade trigger, a hooded front aperture sight, a micro click, adjustable diopter rear sight, patented ambidextrous pull bolt and a floating Lothar Walther barrel.
When shouldered, your eye is immediately attracted to the aperture sight providing a fast and clear sight picture unlike the tiny notch rear sights on most bolt action military rifles .
A solid-as-a-rock aperture sight fitting a boat-load of common guns.
As the rifle's split bridge receiver prevents mounting an aperture sight in the "correct" position, I think an open U-notch rear sight would have been a more practical choice.
Instead an aperture sight was installed on the rear bridge which is integrated with another scope base that can be used for conventional scope mounting if required.
XS Sight Systems presents the Ruger Gunsite Scout Rifle full-length scope rail with aperture sight, which features drop-on installation, and offers expanded versatility, allowing red dots, scout scopes and traditional optics.
I leaned against its door, peered through the aperture sight and raised the front bead a foot above the.
Lieutenant Colonel Noor ul Hassam won the Big bore rifle telescopic match, Havaldar Shahid Imran won the Big bore rifle aperture sight match while Major Idrees won the Big bore professional match.
The current system consists of a 12-inch sight bar fitted with a Cobra Easy Slide sight out front and an aperture sight in the rear.
One unique feature is the dual aperture sight so it can be fired with pinpoint accuracy at both close and long range.