Home > Riflescopes > Leupold > Leupold Mark 4 with Barrett BORS System
Select a Manufacturer/Product:
Leupold Mark 4 3.5-10x40mm and Barrett BORS Leupold Mark 4 4.5-14x50mm and Barrett BORS Leupold Mark 4 6.5-20x50mm and Barrett BORS
Leupold Mark 4 8.5-25x50mm and Barrett BORS
Barrett BORS System for Leupold Mark 4 Rifle Scopes


The Barrett Optical Ranging System (BORS) is an integrated ballistics computer that mounts directly on the riflescope and couples to the elevation knob.

BORS instantly takes care of the data work by drawing from several tables and taking into account a number of real-time external factors so you can focus on the task of achieving first round hits.

After determining the range to target, simply turn the elevation knob until the BORS screen matches your target's distance. Internal sensors automatically calculate the ballistic solution. BORS compensates for temperature and barometric pressure, calculates angle cosine and displays rifle cant.

The BORS kit includes the proprietary Barrett Ballistic PC Software that's pre-programmed with a library selected by Barrett BORS USB data cable allows the transfer to BORS from his or her computer.

Designed primarily to withstand military operations, BORS is rugged and able to operate with a variety of scopes, calibers and rifles.


*Barrett Ballistic Software requires Windows XP or higher, and is not directly MAC OS compatible
Sort By:
Page of 1
LEUPOLD Mark 4 M1 4.5-14x50mm (30mm tube) Matte Duplex (includes free Butler Creek Caps) & Barrett BORS system w/30mm Zero-Gap rings (LEU54660-BAR66000) LEUPOLD Mark 4 M1 3.5-10x40mm (30mm tube) LR/T Matte Mil-Dot (includes free Butler Creek Caps) & Barrett BORS system w/30mm Zero-Gap rings (LEU52128-BAR66000) LEUPOLD Mark 4 M1 3.5-10x40mm (30mm tube) LR/T Matte TMR (includes free Butler Creek Caps) & Barrett BORS system w/30mm Zero-Gap rings (LEU60020-BAR66000)
LEU54660-BAR66000 LEU52128-BAR66000 LEU60020-BAR66000
LEUPOLD Mark 4 M1 4.5-14x50mm (30mm tube) Matte Mil-Dot (includes free Butler Creek Caps) & Barrett BORS system w/30mm Zero-Gap rings (LEU54560-BAR66000) LEUPOLD Mark 4 M1 4.5-14x50mm (30mm tube) Matte TMR (includes free Butler Creek Caps) & Barrett BORS system w/30mm Zero-Gap rings (LEU60005-BAR66000) LEUPOLD Mark 4 M1 3.5-10x40mm (30mm tube) LR/T Matte Illuminated Mil-Dot (includes free Butler Creek Caps) & Barrett BORS system w/30mm Zero-Gap rings
LEU54560-BAR66000 LEU60005-BAR66000 LEU67930-BAR66000
LEUPOLD Mark 4 M1 3.5-10x40mm (30mm tube) LR/T Matte Illuminated TMR (includes free Butler Creek Caps) & Barrett BORS system w/30mm Zero-Gap rings LEUPOLD Mark 4 M1 6.5-20x50mm (30mm tube) Matte Mil-Dot (includes free Butler Creek Caps) & Barrett BORS system w/30mm Zero-Gap rings (LEU54680-BAR66000) LEUPOLD Mark 4 M1 6.5-20x50mm (30mm tube) Matte TMR (includes free Butler Creek Caps) & Barrett BORS system w/30mm Zero-Gap rings (LEU60080-BAR66000)
LEU67935-BAR66000 LEU54680-BAR66000 LEU60080-BAR66000
LEUPOLD Mark 4 M1 4.5-14x50mm (30mm tube) Matte Illuminated Mil-Dot (includes free Butler Creek Caps) & Barrett BORS system w/30mm Zero-Gap rings LEUPOLD Mark 4 M1 4.5-14x50mm (30mm tube) Matte Illuminated TMR (includes free Butler Creek Caps) & Barrett BORS system w/30mm Zero-Gap rings LEUPOLD Mark 4 M1 8.5-25x50mm (30mm tube) Matte Mil-Dot (includes free Butler Creek Caps) & Barrett BORS system w/30mm Zero-Gap rings (LEU54690-BAR66000)
LEU67955-BAR66000 LEU67965-BAR66000 LEU54690-BAR66000
LEUPOLD Mark 4 M1 8.5-25x50mm (30mm tube) Matte TMR (includes free Butler Creek Caps) & Barrett BORS system w/30mm Zero-Gap rings (LEU60070-BAR66000) LEUPOLD Mark 4 M1 6.5-20x50mm (30mm tube) Matte Illuminated Mil-Dot (includes free Butler Creek Caps) & Barrett BORS system w/30mm Zero-Gap rings LEUPOLD Mark 4 M1 6.5-20x50mm (30mm tube) Matte Illuminated TMR (includes free Butler Creek Caps) & Barrett BORS system w/30mm Zero-Gap rings
LEU60070-BAR66000 LEU67970-BAR66000 LEU67975-BAR66000
LEUPOLD Mark 4 M1 4.5-14x50mm (30mm tube) Matte Mil-Dot First Focal Plane(includes free Butler Creek Caps) & Barrett BORS system w/30mm Zero-Gap rings (LEU65490-BAR66000) LEUPOLD Mark 4 M1 4.5-14x50mm (30mm tube) Matte TMR First Focal Plane(includes free Butler Creek Caps) & Barrett BORS system w/30mm Zero-Gap rings (LEU65495-BAR66000) LEUPOLD Mark 4 M1 8.5-25x50mm (30mm tube) Matte Illuminated Mil-Dot (includes free Butler Creek Caps) & Barrett BORS system w/30mm Zero-Gap rings
LEU65490-BAR66000 LEU65495-BAR66000 LEU67980-BAR66000
LEUPOLD Mark 4 M1 8.5-25x50mm (30mm tube) Matte Illuminated TMR (includes free Butler Creek Caps) & Barrett BORS system w/30mm Zero-Gap rings LEUPOLD Mark 4 M1 6.5-20x50mm (30mm tube) Matte Mil-Dot Front Focal Place (includes free Butler Creek Caps) & Barrett BORS system w/30mm Zero-Gap rings (LEU64660-BAR66000) LEUPOLD Mark 4 M1 6.5-20x50mm (30mm tube) Matte Mil-Dot Front Focal Place (includes free Butler Creek Caps) & Barrett BORS system w/30mm Zero-Gap rings (LEU64665-BAR66000)
LEU67985-BAR66000 LEU64660-BAR66000 LEU64665-BAR66000
LEUPOLD Mark 4 M1 8.5-25x50mm (30mm tube) Matte Mil-Dot Front Focal Plane (includes free Butler Creek Caps) & Barrett BORS system w/30mm Zero-Gap rings (LEU63050-BAR66000) LEUPOLD Mark 4 M1 8.5-25x50mm (30mm tube) Matte TMR Front Focal Plane (includes free Butler Creek Caps) & Barrett BORS system w/30mm Zero-Gap rings (LEU63055-BAR66000)
LEU63050-BAR66000 LEU63055-BAR66000