Product Overview
The Haga Defense B&T MBT Stock System (1913 Interface) allows you to fit the premium B&T MBT folding stock on any gun with a 1913/Picatinny rail at the rear that is 2.62" or taller. The B&T MBT stock features 8-position length adjustment, telescoping cheek riser with 3-position height adjustment and folds to the right.
Specifications
- Length: 7.75" - 10.75"
- Weight: 14.5 oz
- Mount Function: Folding - Right - Canted
- Mount Height: 2.62"
- Mount Width: 1.24"
- Length of Pull Adjustment: 8 positions
- Cheek Riser: Telescoping with 3-position height adjustment
- Folding: To the right, canted downward 3.5 degrees
- Multiple QD sling mount options
- Adapter Material: 6061 aluminum
- Finish: Mil-A-8625 Type III Class 2 hardcoat anodize, black (adapter)
- Colors Available: Black or Coyote Tan
- Included: B&T MBT stock, Haga Defense 1913 adapter, mounting hardware
- Made in: USA (adapter); Stock manufactured by B&T (Switzerland)
Compatibility and Installation Notes
- Mounts to any 1913/Picatinny rail (requires rail height of 2.62" or taller)
- WARNING: When the stock is locked in the folded position, lift the stock upward on the hinge to unlock it before unfolding. Failure to do so can result in damage to the hinge. Haga Defense will not accept returns due to damaged hinges.
- Worry free mount fits rock solid without locking tabs allowing for infinite height adjustment so that you can get the stock looking just how you want it no matter what platform you're using.
- Color Note: B&T "Coyote Tan" is lighter than standard Magpul FDE and may not perfectly match other FDE components (see image below for comparison).

- No permanent modifications required
Legal Note
Always ensure your firearm configuration complies with all applicable federal, state, and local laws.
Always ensure your firearm configuration complies with all applicable federal, state, and local laws.
Installation Instructions
- Safety First: Before beginning installation, make sure the firearm is completely unloaded, the chamber is empty, and the safety is engaged. Remove the magazine, visually and physically inspect the chamber to confirm it is empty, and point the firearm in a safe direction at all times.
- No further installation instructions available at this time.