Forward Controls Design AR-15 Augmented Bolt Catch/Release v3 - Forward Biased - Horizontally Serrated
The ABC/R's chief effort is focused on that single issue. The lower paddle protrudes further, and is angled at 10 degree to give it even more surface area. These measures put the lower paddle and Ambi-Catch's paddle on different vertical planes. That done, FCD worked on the top paddle, made larger, and given a 5 degree angle at the lower 50%, and 10 degree angle at the upper 50% cant. The angled paddle makes it easier for the palm or thumb to access.
The notch immediately above the ABC/R’s lower paddle isn’t there by accident. As you run your finger down the bolt catch towards the lower paddle, the notch is meant to provide tactile feedback to indicate the beginning of the lower paddle. It is important be able to differentiate one control surface from another, all without diverting one's gaze to it.
For 2020 ABC/R version 3 consists of the following changes:
- Ledge on top of the upper paddle, and bottom of the lower paddle to increase traction.
- Upper paddle options: FB (forward biased), standard (centered upper paddle), RB (rearward biased).
- "Butterfly" lower paddle with increased surface area, while maintaining a healthy standoff distance from an ambidextrous magazine catch's lever.
- Slightly lengthened magazine follower trip. Do note that the longer magazine follower trip is designed to make the bolt hold open after the last shot more reliable with more magazine varieties, but not meant to be a fix for out of spec receivers.
- FB (forward biased) is for right hand users that wrap their left hand around the magazine well, and use their left thumb to press the bolt catch's upper paddle. The FB version has the upper paddle shifted to the muzzle end to facilitate this reloading method
- Standard (non-biased, centered) upper paddle remains the same position as v1 and v2 ABC/R, its upper paddle isn't biased towards the front or rear
- RB (rearward biased) is for left hand users that use their extended left index finger to access the bolt catch paddles. The RB version has the upper paddle shifted to the butt stock end to make the upper paddle more accessible
|Forward Biased - Horizontally Serrated