The TruFire Synapse LITE is a thumb-style release with true double Sear operation and features a broad range of adjustments. This allows you to perfectly customize this release to your style of shooting. The Synapse LITE is in its 3-finger configuration but can be easily changed to a 4-finger option with the included 4th-finger attachment. This attachment can also be adjusted to sweep the 4th finger back if desired. The LITE version of the original Synapse features an all-aluminum frame and cover, allowing it to be lightweight while still keeping the internal components of the original Synapse. The internal stainless steel components are precision milled for exceptionally crisp operation and flawless cocking of the trigger activation lever. The thumb barrel is interchangeable with one of the 3 total sizes that are included in the package. It also features micro-adjust tension and travel screws. The trigger pressure is adjustable from a range of 1.25 to 20 ounces without the need to change springs or disassemble the release.