The Kastle Group KNEKT-LVL is a bubble level made for Fortress Series scope mounts, giving you a visual check that the rifle is not tilting to either side before you take a shot. It fastens to...

The KNEKT-LVL is a level made by Kastle Group, designed to help you set up your optic so it sits true on the firearm. It is a simple, focused tool for anyone who wants a dependable reference while...

The Kastle Group RMR-45 is a Fortress Series offset mount that carries a red dot with a Trijicon RMR footprint at a 45-degree angle. It is designed to work with Kastle's MICRO-226 and ACRO-226 optic...

The Kastle Group RMR-45 Offset Mount carries a Trijicon RMR footprint optic at a 45 degree offset position, so you can keep a red dot angled off to the side of your primary sight. It is designed to...

The Kastle Group RMR-45 Offset Mount lets you add a red dot at a 45° offset position, so a spare optic or a second zero sits off to the side of your primary sight. It uses the Trijicon RMR/SRO...

The Kastle Group THORN-200 is a curved hand stop from the KONTROL series of M-LOK accessories, giving your support hand a form-fitting place to rest. It mounts with one single M-LOK slot on a...

The Kastle Group TOWER-200 is a stubby vertical foregrip from the KONTROL series, made for handguards that are M-LOK compatible. It uses just one single M-LOK slot on your handguard, so the rest of...

The Kastle Group TOWER-250 is a vertical foregrip from the KONTROL series that mounts to your handguard through a single M-LOK slot, so you only need one open slot on a compatible rail. It is...