When a member of a government agency  asked us why the BT27 did not offer a 45 degree position, we did not  have an answer. Now it does! The newly redesigned BT27 Folding Foregrip  offers two opposing at surfaces to secure light switches with the  installed Buna O-Rings. Removing the bottom cap reveals a storage  compartment designed to hold a single 123 battery. The unique design  protects the battery from being drained by placing the positive side (+)  towards the relieved cap. We also trimmed the handle to decrease weight  while maintaining battery storage and touch pad retainers.
Attaches  to standard 1913 Picatinny rail. It is machined from 6061-T6 aluminum  that is Mil-Spec Type III hard anodized. Available in black only.
Deployed Length: 4.073"
Folded Length: 4.032"
Weight: 5.225 ounces