Description
This bundle pairs two of the parts that put Battle Arms Development on the map: the RACK ambidextrous charging handle and the BAD-ASS-PRO ambidextrous safety selector. Together they take a standard AR-15 or 9mm PCC and turn it into a rifle you can run comfortably from either shoulder. If you shoot left-handed, run a red dot or LPVO, or just want controls that keep up with hard use, this is a straightforward way to get there.
The RACK is built around a simple three-piece design with only three major components, which is a big part of why it feels so smooth. Instead of the pivoting latch and roll pin found on a mil-spec handle, it uses a side-sliding release, so it makes almost no contact with the sides of the receiver. That means less wear on both the handle and your upper over time. It's machined from billet 7075-T6 aluminum with a hard-anodized black finish, and it pulls clean from the left, the right, or both sides at once. Folks who've run it tend to mention how quick it installs and how buttery the action feels compared to whatever they had on before.
What the BAD-ASS-PRO Selector Brings to the Table
The safety selector in this kit is the newest generation of the part that started it all for Battle Arms. It ships with a reversible center that gives you both 0-90 degree and 0-60 degree short-throw options, plus standard and short levers that swap around for lefties or righties. There's no lawyer pin to deal with, and it's designed to work with all known mil-spec-pattern lowers and aftermarket triggers like Geissele, Timney, CMC, and Hiperfire. The internal locking mechanism ditches fragile spring-loaded detents for a positive lock, and the set screw is made to resist stripping.
Getting the RACK and BAD-ASS-PRO Onto Your Build
Both pieces are drop-in level work for anyone comfortable doing basic AR assembly. The charging handle swaps in seconds, and the selector installs with the included wrench torqued down snug with a dab of non-permanent thread locker. Everything here is made in the USA and backed by Battle Arms' reputation for duty-grade parts.
Key Specifications
- Manufacturer: Battle Arms Development
- Manufacturer Part Number: AMBI-KIT-1
- UPC: 810033785801
- Model: RACK Charging Handle
- Color / Finish: Black, Matte / Hard Anodized
- Platform Compatibility: AR-15, M4, M16, 9mm AR PCC / AR-9
- Charging Handle Material: Billet 7075-T6 Aircraft Grade Aluminum
- Charging Handle Design: Three-component, side-sliding release, ambidextrous
- Selector Throw Options: Reversible 0-90 and 0-60 degree short-throw
- Selector Levers: Standard and short, interchangeable for left or right hand
- Trigger Compatibility: Mil-spec and aftermarket (Geissele, Timney, CMC, Hiperfire)
- Country of Origin: Made in USA
What’s Included
- RACK ambidextrous charging handle
- BAD-ASS-PRO ambidextrous safety selector (center core)
- Standard safety lever
- Short safety lever
- Two set screws
- Install wrench
- Short-throw markings sticker
Frequently Asked Questions
Will this ambi upgrade kit fit my AR-15 and PCC builds?
Yes. The RACK charging handle works on AR-15, M4, M16, and 9mm AR PCC platforms, so it covers most standard builds. The BAD-ASS-PRO selector is compatible with all known mil-spec-pattern lowers with or without a short-throw relief cut, so you don't need a special receiver to run it.
Does the RACK charging handle really cause less wear than a mil-spec handle?
That's the whole idea behind its design. The RACK uses a side-sliding release and makes almost no contact with the sides of the receiver, which cuts down on the wear you'd normally see over thousands of rounds. It also ditches the roll pin and pivoting latch that tend to be the first things to fail on a standard handle.
Is the BAD-ASS-PRO selector hard to install?
Not at all for anyone who's done basic AR work. Use the long end of the included wrench, torque the set screw down snug, and a dab of non-permanent thread locker keeps it put. The reversible center and swappable levers let you set it up for 60 or 90 degree throw and for whichever hand you shoot with.
Can I pull the RACK from both sides at once?
You can. The RACK is built for asymmetric use and handles left-side, right-side, or even pulls, releasing the upper cleanly no matter how you rack it. Owners who run it consistently mention how smooth and positive the action feels from any side.




Reviews
There are no reviews yet.