
rjc9000
For interested buyers worried about potential: beware of the scale on *other* users' models; do not worry about turbojet's scaling techniques. Turbojet meticulously crafted the Ladder covers to match the dimensions of real world Picatinny Rail sections, which is fairly easy to check with Blender measurement tools. For example, the width of each section intended to fit in the rails is exactly 0.00525 meters (0.525mm), the length at the maximum section for the rails is 0.0212m (21.2mm), and the spacing between the slot centers is 0.01m (10mm) apart.
So if you're going to find issues with the covers and various models, it's going to likely be with artists who made their Picatinny sections with odd scales in spite of 1913 rail sections having their dimensions public for a few decades. I can personally say I never had an issue with the ladder covers' compatibility on turbojet's HK433 series, anything from cannuccia, or with Raider's M4A1 Block IIs (legacy or current version).