The LaRue Tactical SPR / M4 Scope Mount QD 30mm (Model: LT104-30) is a dual-lever quick-detach cantilever mount designed to secure 30 mm maintube optics to MIL-STD-1913 Picatinny rails. CNC-machined from 6061-T6 bar-stock aluminium with a Type III hardcoat anodised finish, this mount sets the optical centerline height at 1.50 inches (approximately 38.1 mm) above the rail. Its cantilever design extends the optic forward to achieve proper eye relief on flattop receivers and modern rifle chassis without bridging the handguard. Equipped with LaRue Speed Levers and steel-threaded inserts, it provides true return-to-zero optical detachment and reattachment under field and heavy recoil conditions.

Key Features

• Dual QD Speed Levers: Employs dual quick-detach levers with locking nuts, allowing rapid optic detachment and reattachment while preserving the rifle's zero.
• Integral Backbone: One-piece spine connects both split vertical rings, providing structural rigidity and eliminating the requirement for ring lapping.
• Forward Cantilever Architecture: Projects the optic forward over the rifle receiver to ensure correct eye relief on modern sporting rifles and chassis systems.
• Durable Construction: Machined from 6061-T6 bar-stock aluminium with Type III hardcoat anodising and threaded steel inserts in the ring caps.
• Standard Picatinny Interface: Clamps directly onto standard MIL-STD-1913 Picatinny rails on straight-pull, bolt-action, and modern sporting rifle platforms.

Specifications

• Ring Diameter: 30 mm
• Optical Centerline Height: 1.50 inches (38.1 mm)
• Mount Interface: MIL-STD-1913 Picatinny rail
• Mechanism Type: Dual-lever Quick Detach (QD) cantilever
• Material: 6061-T6 aluminium with steel hardware inserts
• Finish: Type III hardcoat anodised
• Weight: 7.1 oz to 9.9 oz (approx. 201 g to 280 g depending on configuration)
• Power Requirements: None (mechanical accessory)

Who is the LaRue Tactical SPR / M4 Scope Mount QD 30mm for?

• Modern Sporting Rifle and AR-15 Shooters — positions 30 mm riflescopes forward over the receiver using a cantilever design to achieve proper eye relief while maintaining a 1.50-inch optical centerline height for standard cheek welds.
• Precision Varmint and Hunting Chassis Rifle Owners — secures 30 mm maintube optics within a rigid 7.1 oz to 9.9 oz QD 30mm scope mount that maintains exact zero when swapping optics across Picatinny-railed chassis platforms.
• Mk12 SPR and M110 Clone Builders — matches period-correct military specifications requiring a dedicated 30 mm dual-lever QD cantilever mount with a 1.50-inch optical height for standard .308 Win and 5.56 NATO platforms.

Less suitable for: Rifles using 34 mm diameter scope tubes, which require a dedicated 34 mm cantilever mount, or setups requiring clearance over top-mounted laser illuminators like ATPIAL/PEQ units, which require a taller 1.93-inch high-rise optic mount.