What is the optical centerline height of the LaRue Tactical LT158-30, and why does it feature a 10 MOA elevation bias?

The LT158-30 features an optical centerline height of 1.44 inches above the top of the Picatinny rail, providing a lower profile than standard 1.5-inch mounts. It incorporates a built-in 10 MOA down angle specifically designed to preserve upward internal turret travel on your rifle scope when engaging targets at mid-to-long ranges.

Is the LaRue Tactical SPR-S LT158-30 compatible with standard Australian hunting and precision rifle platforms?

Yes, this mount is fully compatible with standard MIL-STD-1913 Picatinny rails commonly found on Category A and B bolt-action chassis—such as the Tikka T3x TAC A1 and Ruger Precision Rifle—as well as modern sporting rifles. Because it is a purely mechanical aluminium accessory with no electrical components, compliance certifications like SAA or 240V ratings are not applicable.

Will this mount work with my 34mm scope or do I need an alternative model?

The LT158-30 is engineered strictly for optics featuring a 30 mm main tube and will not accommodate 34 mm, 35 mm, or 1-inch tubes without separate models or reduction inserts. If you are running a 30 mm scope ring alternative within our range for separate configurations, you may also look at the LaRue Tactical LTR-30 rings, but the LT158-30 specifically provides the integrated cantilever and 10 MOA cant needed for forward eye relief.

How does the dual locking QD Speed Lever system perform for field use and return-to-zero reliability?

The mount utilizes proprietary dual locking LaRue Speed Levers that clamp securely onto standard Picatinny rails for rapid detachment and tool-free field removal. Precision CNC-machined from 6061-T6 bar-stock aluminium with threaded steel ring inserts, it maintains a rigid, no-lap unified backbone designed to guarantee reliable return-to-zero when reattached in the field.

QD Scope Mount - LaRue Tactical LT158-30

The LaRue Tactical SPR-S QD Scope Mount 30mm 10 MOA (Model: LT158-30) is a quick-detach cantilever optic mounting system engineered for flat-top modern sporting rifles, precision bolt-action chassis, and straight-pull platforms equipped with standard MIL-STD-1913 Picatinny rails. Precision CNC-machined from 6061-T6 bar-stock aluminium with a Type III Class 2 hard-coat matte black anodised finish, the LT158-30 positions 30 mm rifle scopes with an extended forward cantilever to maintain proper eye relief without bridging the receiver and handguard. It features an integrated 10 MOA downward angle to preserve internal elevation turret travel for mid-to-long-range shooting, alongside a low 1.44-inch optical centerline height.

Key Features

Extended Cantilever Profile: Projects the optic forward over the rifle handguard to establish correct eye relief while maintaining solid contact entirely on the upper receiver rail.
Integrated 10 MOA Down Angle: Built-in elevation cant biases the scope downward, conserving upward turret adjustment travel for extended-range trajectories.
Low SPR Optical Profile: Sets the optical centerline at 1.44 inches (~36.6 mm) above the top of the rail, providing a low cheek weld.
No-Lap Backbone Design: A rigid, unified horizontal backbone links the split vertical rings to eliminate scope ring lapping and prevent optic binding during torqueing.
Repeatable Quick-Detach (QD) Levers: Proprietary dual locking LaRue Speed Levers enable rapid attachment, removal, and return-to-zero in the field.
Steel-Reinforced Hardware: Built with dual steel-reinforced recoil lugs and threaded steel ring inserts to withstand standard rifle recoil classes up to .300 Win Mag.

Specifications

Ring / Main Tube Diameter: 30 mm
Optical Centerline Height: 1.44 inches (~36.6 mm)
Cant / Incline: 10 MOA
Mounting Interface: MIL-STD-1913 Picatinny rail with dual locking QD Speed Levers
Material & Finish: CNC-machined 6061-T6 aluminium with Type III Class 2 hard-coat anodisation
Ring Spacing: 2-5/8 inches (internal gap); 4-3/8 inches (exterior front-to-rear)
Recoil Class: 5.56 NATO up to .308 Win and .300 Win Mag

Who is the LaRue Tactical SPR-S Mount 30mm 10 MOA for?

Long-range precision rifle shooters — Requires a cantilever scope mount with a built-in 10 MOA down angle to conserve internal upward elevation travel on flat-top tactical bolt-action chassis or sporting rifles while securing a 30 mm optic at a 1.44-inch optical centerline height.
Mid-to-long-range hunters — Demands a quick-detach cantilever scope mount with dual locking levers for repeatable return-to-zero field removal, combined with a 10 MOA elevation bias and a low 1.44-inch centerline profile for fast, consistent target acquisition.

Less suitable for: Standard shooting setups inside 100 to 300 metres where a flat baseline is preferred (standard 0 MOA mounts fit better), extreme long-range shooting exceeding 1,000 metres where a 20 MOA or 30 MOA high-cant base is required for turret clearance, or optics with 1-inch, 34 mm, or 35 mm main tubes (which require dedicated-diameter scope rings or tube reduction inserts).

SKU	LAT41088LP
Model #	LT158-30
Brand	Larue Tactical
Shipping Weight	1.0000kg

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Larue Tactical Lt158-30 Scope Mount 30mm 10 Moa

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