What rifles are compatible with the Lyman Receiver Sight 57 SME Target?

This sight is specifically designed for bolt-action rifles with rounded receiver contours, fitting Springfield 1903 and 1903A3, Mauser 98 variants, and modified Enfield 1914/1917 models. It is not compatible with flat-sided lever actions or Remington 700 and Winchester 70 actions. If your rifle receiver is not already pre-drilled, professional gunsmithing using standard #6-48 screw spacing is required.

How do the target knobs and adjustments assist with precision shooting?

The 57SMET model features oversized, finger-adjustable target knobs instead of flush coin-slotted screws for rapid, tool-less windage and elevation changes in the field. Both windage and elevation offer precise 1/4 MOA audible click adjustments. Additionally, a quick-release elevation slide with a return-to-zero preset stop screw allows you to remove the sight for cleaning or transport without losing your zero.

Does this mechanical sight require any electrical compliance or certifications in Australia?

No electrical compliance is required. The Lyman 57SMET is a fully mechanical, passive aperture sight with no batteries, electrical components, or electronic parts, meaning it does not require 240V mains power or SAA/RCM safety certifications. In Australia, iron receiver sights are generally classified as unrestricted firearm accessories, though proper state licensing applies to the host rifle it is fitted onto.

What is the recommended operating range and aperture setup for this sight?

The sight is optimized for target and field shooting between 25 metres and 200 to 300 metres when paired with standard centreline front sights. It comes supplied with two interchangeable aperture discs: a large hunting disc for a wide field of view in fast acquisition scenarios, and a small diameter target peep disc for pinpoint accuracy in competitive matches.

Receiver Sight - Lyman LY-57SMET

The Lyman Receiver Sight 57 SME Target (MPN: 3572091 / LY-57SMET) is a fully mechanical receiver peep sight engineered for classic rounded bolt-action rifles. Weighing 4 oz (approximately 113.4 g), it features an anodised aluminum alloy body fitted with blued steel micrometer adjustment screws. It delivers precise 1/4 MOA audible click adjustments for both elevation and windage, making it suitable for target engagements typically ranging from 25 metres to 300 metres. The sight is contoured specifically for rounded receiver walls, including Springfield (1903, 1903A3, M1/M2 .22), Mauser (98 and variants), modified Enfield (1914/1917), Sako, and White Systems rifles.

Key Features

1/4 MOA Micrometer Clicks: Audible, repeatable 1/4 minute adjustments provide fine-tuning for windage and elevation.
Target Turret Knobs: Features oversized, raised finger-adjustable knobs that allow rapid, tool-less adjustments in the field or on the firing line.
Quick-Release Elevation Slide: Includes a push-button release slide with a return-to-zero preset stop screw, enabling rapid slide removal for transport or rifle cleaning without losing zero.
Dual Aperture Discs: Supplied with two interchangeable discs, including a wide-view hunting aperture for rapid sight picture acquisition and a small target peep disc for pinpoint accuracy.
Passive Mechanical Reliability: All-metal construction requires zero battery power or electrical compliance, handling standard military calibres up to heavy magnums.

Product Specifications

Part Number: 3572091 / LY-57SMET
Weight: 4 oz (approx. 113.4 g)
Adjustment Value: 1/4 MOA per click (windage and elevation)
Construction: Anodised aluminum body with blued steel screws and detents
Receiver Fitment: Rounded receivers (Springfield 1903/A3, Mauser 98, Enfield 1914/1917 modified, Sako, White Systems)
Standard Mounting Hardware: Standard #6-48 screw spacing (drilling and tapping required if receiver is un-drilled)

Who is the Lyman Receiver Sight 57 SME Target for?

Vintage military surplus service rifle competitors — requires repeatable 1/4 MOA click adjustments to make precise sight corrections on rounded Springfield 1903 and Mauser 98 actions during vintage match shooting.
Metallic silhouette target shooters — benefits from the 1/4 MOA click values and finger-adjustable target turrets of this receiver peep sight to rapidly index between known distances from 25 metres out to 300 metres.
Precision hunters using classic bolt-action rifles — adds reliable aperture sighting to rounded-receiver hunting rifles with a minimal added weight of just 4 oz.

Less suitable for: Flat-sided lever-action rifles (which require flat-side mount receiver sights), Remington 700 or Winchester 70 actions (which require dedicated receiver profiles), or factory rifles where the owner is unwilling to complete professional drilling and tapping for mounting screws.

SKU	LY39895LP
Model #	LY-57SMET
Brand	Lyman
Shipping Weight	1.0000kg

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Lyman Ly-57smet Receiver Sight Target Knobs 1/4 Moa

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