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Optics WTS: Leupold MK4 2.5x8 with Larue QD mount.

KT406

Private
Minuteman
Feb 27, 2021
6
2
Atlanta
F1CEDE57-BA5C-4C0B-A273-9B0CD47EBEBE.jpeg
Selling my Leupold MK4: 2.5 x 8

Lightly used. Comes with everything from the Larue scope mount bundle. QD scope mounds. A must for a MK12 clone build.

Asking $2000.00 open to reasonable offers. Or unreasonable shoot ya shot lol

The Leupold® Mark 4® MR/T® riflescope is a robust optical tool for medium-range shooting applications. Finger-adjustable windage and elevation adjustments with audible, tactile clicks. Once sighted in adjustment knobs can be zeroed. Features standard power selector for quick and easy magnification adjustment in the field.

Weight (oz) 16.00
Linear FOV (ft/100 yd) - Low 35.50
Linear FOV (ft/100 yd) - High 13.60
Linear FOV (m/100 m) - Low 11.70
Length (in) 11.30
Linear FOV (m/100 m) - High 4.50
Length (cm) 28.70
Eye Relief (in) - Low 3.70
Eye Relief (in) - High 3.00
Eye Relief (mm) - Low 94.00
Eye Relief (mm) - High 76.00
Objective Diameter (in) 1.40
Weight (g) 454.00
Elevation Adjustment Range (MOA) 90.00
Windage Adjustment Range (MOA) 90.00

Leupold Part Number: 112633

This optic is the culmination of the Leupold TS30 and MR/T series. Part number 112633 was created in 2010 to define a specific optic and packaging configuration for use on the Mk12 Mod1. This had been deemed necessary as purchases using prior commercial part numbers resulted in the receipt of an optic with 168gr 7.62mm elevation turret caps. A second purchase effort was then needed to obtain a 5.56mm turret cap.

Once developed, the NSN for the Mk12 Mod1 optic was updated. The NSN had shown part numbers for mil dot optics (60150 and 67920) rather than the TMR reticle part number (60170), which is what had been procured and issued with USMC Mk12 Mod1s.

The updates to the National Stock Number NSN 1005-01-562-0953 occurred in 2010. Both prior commercial part numbers were rendered non-procurable. The NSN then referred only to 112633, which was a TMR optic packaged with a 5.56mm turret cap. The end item identification for the 112633 optic remains as “Mk12 Mod 1”.

Other specific features were worked into this configuration.
• Larger stainless steel screws for elevation and windage caps.
• Tethered battery cap (loss of a battery cap could render a Mk12 un-issuable as a system since the optic was classed as a critical component).
• Switch to a more common 2032 coin cell battery vs the original 1/3N cell.
• Improved rheostat switch for illumination. This offered more positive detents clicks and OFF positions between each power setting.

• Addition of a SLip and Alignment Pattern (SLAP). This was a pattern of etched lines on the main tube. This was designed to “de-skill” maintenance by simplifying installation of the optic to a mount, provide a default starting point for eye-relief, and serve as a visual indicator of whether the scope ever slipped or rotated within the mount. The pattern was added at 9, 12 and 3 o’clock to allow use of either vertically or horizontally split ring mounts.

• Elevation cap labels. The markings then in use were usable but approximate and based off M855 ball ammunition. As 77gr Mk262 Mod1 had become the primary ammunition, the cap range markings were revisited, altered, and confirmed with AA53, Mk262 Mod 1 ammo. To distinguish range markings from MOA the font size for 100m ranges were increased to contrast with the numerals used for MOA. The turret was additionally labeled in meters to be consistent with training for iron and other optical sights.

The 112633 version was approved in the summer of 2010 and optics added to DoD inventory early 2011 to sustain the Mk12 Mod1 in support of OEF and other operations. The optics were used on Mk12 Mod1s until the system was ultimately replaced by the M38 system in 2017. Though the optic was always a commercial item, Leupold elected to not add the optic part number 112633 to their commercial catalog until approximately 2014. This has led to the misperception that the optic came out four years after it actually did and furthered the falsehood that it was only used with M38s despite being initially issued and employed on Mk12 Mod1s for five plus years.
 
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