3D  printed solutions.

A must for Bainbridge A117 compression slide or cars with ball bearings.

Photos of spar  Cross Section Profiles of  G1 , E1 , and H1 

Profile Examples:

G1  ( Beneteau 36.7 ; Catalina 380 )

E1   ( Tayana-37 and H-Boat )

H1   ( too many to list )

A1   (Cape Dory Typhoon )

Single & Dual External Tethered MastGates

Photos: Click on ​to enlarge.

Aluminum gate plate with a 10-32 thumb screw.  Carbon fiber and nylon 3D printed replacements available for Pearson sailboats.

Single and Dual Internal MastGates

Single & Dual External Fixed MastGAtes

Quick-Release Track-Stop (QRTS) .

Never lose another track top overboard or need plyers.
Our light weight QuickRelease handles only require a few pounds of hand pressure to provide over a hundred pounds of track locking pressure. 
We use aluminum rods that come in two lengths, 2", 4" and we have an 8" flexible extension kit.  They will fit all track channel profiles.
Click on images for a larger view. Use as  Track Stop or under boom slide.  Many variations.

The most common uses for QuickRelease TrackStop:

1.  Sailors who wants the simplest solution to keep the sail from falling out of the sail-feed slot. 
2.  Use it under a sliding goose-neck to limit boom drop during reefing.
3.  Create more head room or a taller boom tent by locking the boom higher up the mast.