Description
If you've ever run a suppressor or a short barrel and gotten a face full of gas every time you charged the rifle, the Precision Reflex Gas Buster with flat latch was built for exactly that problem. There's a dedicated deflection groove milled into the handle that steers blowback gas, oil, and carbon off to the side and away from your eyes. It won't stop every bit of gas from working its way out of the receiver, but folks who shoot suppressed consistently say it makes a real difference in how pleasant the gun is to run.
What Sets the Gas Buster Flat Latch Apart
The flat latch is the version that looks and feels closest to a standard mil-spec charging handle, so there's no learning curve. What's different is the deeply hooked latch face, which gives you a positive, non-slip grip when you yank it back. It stays low-profile enough that it isn't going to snag on gear or hang up under a low-mounted optic, which is a common gripe with the bigger oversized latches.
Built to Take a Beating
PRI machines the Gas Buster body from 7075-T6 aluminum with extra material left at the stress points, so it resists the twisting and flex that can wreck cheaper handles under hard cycling. The finish is a matte black hardcoat anodize that shrugs off wear, and the latch itself is steel rather than aluminum, which matters since the latch is the one small part you don't want failing on you. This is a patented design that's seen service with the US Marine Corps, so it's not some unproven gimmick.
Fitment Notes for Your Build
This handle fits standard AR-15, M16, and M4 uppers and ships as a complete drop-in assembly, so there's nothing to piece together. Worth knowing before you buy: because the gas gets ported to the right side, it works best for right-handed shooters. Left-handed folks will still get protection but may want to look at PRI's ambidextrous versions instead. Give it a look if you want a tougher, cleaner-running upgrade over the factory handle that came in your rifle.
Key Specifications
- Manufacturer: Precision Reflex (PRI)
- Manufacturer Part Number: 05-0030
- UPC: 090222551268
- Model: M84 Gas Buster
- Latch Type: Flat Latch
- Platform: AR-15 / M16 / M4
- Body Material: 7075-T6 Aluminum
- Latch Material: Steel
- Finish: Matte Black Hardcoat Anodized
- Configuration: Complete Drop-In Assembly
- Best For: Right-Handed Shooters
What’s Included
- PRI Gas Buster charging handle with flat latch (complete assembly)
Frequently Asked Questions
Does the Gas Buster charging handle actually reduce gas in the face?
Yes, the deflection groove routes blowback gas, oil, and debris off to the side instead of back toward your eyes. It's most noticeable on suppressed and short-barreled setups where gas is a bigger issue. It won't eliminate every bit of gas coming from the receiver, but it makes running the rifle a lot more comfortable.
Will the flat latch fit my AR-15 upper?
It's built for standard AR-15, M16, and M4 uppers and drops in as a complete assembly with no fitting required. It is not designed for AR-10 or .308 platforms like the Colt 901, and it does not work with 10/22 conversion kits. If you have a larger-frame rifle, you'll want PRI's dedicated AR-10 handle instead.
Why choose the flat latch over the bigger latch options?
The flat latch is closest in size and feel to a standard mil-spec handle, so there's no adjustment period. Its deeply hooked face still gives you a secure, non-slip grip when you charge the rifle. It also stays low enough that it won't snag on gear or interfere with a low-mounted optic.
Is the Gas Buster a good pick for left-handed shooters?
Because the gas is ported out to the right side, this flat latch model works best for right-handed shooters. A lefty will still get more protection than a bare mil-spec handle, but the deflection isn't optimized for that hand. If you shoot left-handed, PRI's ambidextrous Gas Buster models are the better route.




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