Battle Arms Development BAD-ASS-PRO Full-Auto Ambi Safety Selector - BAD-ASS-FA-PRO

Battle Arms Development BAD-ASS-PRO Full-Auto Ambidextrous Safety Selector - BAD-ASS-FA-PRO - UPC 810033782619

Product Description

The Battle Arms Development BAD-ASS-PRO Full-Auto Ambidextrous Safety Selector (BAD-ASS-FA-PRO) is a professional-grade, professional-duty fire control control package engineered specifically for M16 / M4 select-fire platforms and full-auto AR-15 machine guns. Engineered around a 0°–90°–180° rotation center core (Safe, Semi-Auto, Full-Auto), this kit delivers crisp detent engagement, absolute reliability, and modular ergonomic customization for both right- and left-handed operators.

Precision Swiss CNC-machined from hardened bar-stock steel, the selector core features Battle Arms Development's next-generation dovetail attachment system with an internal locking set-screw mechanism. By eliminating traditional external screw heads, the BAD-ASS-PRO system completely prevents screw shear, thread stripping, and lever wobbling under extreme fully automatic recoil cycles—no threadlocker required.

The kit includes two investment-cast 8620 steel levers (one Standard length and one Short length) protected by a severe-duty black phosphate finish. Fully interchangeable across either side of the lower receiver, these ergonomic levers feature raised tactile ridges for positive thumb indexing under stress, high-speed weapon manipulation, or when operating with heavy tactical gloves.

*Armorer Bench Notes & Real-World Staging Guidance:

Fitment Matrix: Direct fit for standard Mil-Spec M16, M4, and AR-15 full-auto registered lower receivers and trigger groups designed to work with standard 0°–90°–180° full-auto safety selectors. Note: The PRO series utilizes an updated internal dovetail lock and is NOT backwards-compatible with legacy BAD-ASS or CASS levers.

1. Verify the firearm is verified completely clear, safe, and unloaded before starting installation.
2. Remove the pistol grip and safety detent spring/detent pin. Insert the BAD-ASS-FA-PRO full-auto center core into the lower receiver housing.
3. Slide the dovetail grooves of the standard and short levers onto the core stems, then tighten the internal 5/64" set screws to lock the levers securely. Reinstall detent, spring, and grip before function testing.

Key Features

• 0°–90°–180° Full-Auto Center Core: Direct Mil-Spec throw angles for Safe (0°), Semi-Auto (90°), and Full-Auto (180°) positions.
• Patent-Pending Internal Locking Dovetail: Internal set-screw design eliminates external screw heads to prevent shear, stripping, and loose levers.
• Swiss CNC Machined Steel Core: Crafted from hardened bar-stock steel with a black phosphate coating for buttery-smooth rotation.
• Interchangeable Steel Levers: Includes one Standard and one Short 8620 steel lever for customized ambidextrous control setups.
• 100% Mil-Spec Trigger Compatibility: Functions seamlessly with all standard Mil-Spec full-auto fire control groups and lower receivers.

Product Specifications

• Brand: Battle Arms Development (BAD)
• Model: BAD-ASS-PRO Full-Auto Ambidextrous Safety Selector
• MPN: BAD-ASS-FA-PRO
• UPC: 810033782619
• Platform Compatibility: Full-Auto M16 / M4 / AR-15 Machine Gun Lower Receivers
• Throw Angles: 0° (Safe) – 90° (Semi) – 180° (Auto)
• Center Core Material: Hardened Bar-Stock Steel (Black Phosphate)
• Lever Material: Investment Cast 8620 Steel (Black Phosphate)
• Included Hardware: Core, (1) Standard Lever, (1) Short Lever, (2) Set Screws, Hex L-Key, Detent & Spring
• Total Assembly Mass: ~0.74 oz (21.0 g)