Description
Originally developed in the 1970s by John Unertl for the USMC, the MST-100 was purpose-built for the M40A1 .308 rifle and later adapted for the .50BMG. Designed for uncompromising durability, its housing and turrets are precision-machined from 1018 steel, ensuring reliability in the harshest conditions. The elevation turret features an integral BDC calibrated for M118LR ammunition, with a veneer ring for fine-tuned ½ MOA adjustments.
In 2000, U.S. Optics took on the refurbishment contract, rebuilding these legendary optics to an even higher standard. To accommodate the M40A3’s 30 MOA base, we replaced the original leaf springs with a tapered coil spring, delivering flawless tracking. The scopes were further enhanced with a rugged coating for superior corrosion resistance. The original wire MIL-Dot reticle was upgraded to a recoil-resistant design, engineered to withstand the punishing forces of the .50 caliber platform.
Due to overwhelming demand, U.S. Optics is releasing an exclusive production run of just 100 MST-100 scopes. With modern materials and CNC precision, this limited-edition optic delivers legendary performance with contemporary advancements, standing among the finest precision scopes available today.
Deposit Refund Policy:
100% refundable up to 15 days from deposit
50% non-refundable after 30 days
100% non-refundable after 60 days
