Badger Ordnance TDX Low Profile Gas Block with Set Screws, .625″
The TDX gas block from Badger Ordnance has an extremely low profile and will fit under even the narrowest and slimmest of handguards.
The Badger Ordnance 5/8″ (.625″) TDX Gas Manifold is the smallest manifold and will fit under any free float handguard. Machined from 416 Stainless Steel and secures with 2 Stainless set screws.


Jesse S. (verified owner) –
Quality gas block, pairs well with the criterion core barrels
T H. (verified owner) –
The Badger TDX low profile GB was as expect; well made with tight tolerances. Mated this one with a Criterion Core barrel. Nice, tight fit.
Now for the gang at Rooftop Defense. They’re fantastic. Top tier gear, no BS false representation of what is or isn’t stock, and quickest out-the-door times of anyone in the business
J (verified owner) –
Badger gas blocks are great… Little bit less great when they don’t include the set screws in the package.
Joon C. (verified owner) –
Got this to mount on a Criterion 10.5” Core which is going in on my first AR (and first build). I can’t speak on the quality of the part as I haven’t yet fired the gun, but I’m sure it’ll be good as Criterion offers it as an add-on on their website. I can speak on the quality of service from Rooftop Defense – they are great and I’ll be purchasing more from them!
Johnny B. (verified owner) –
Paired with a Criterion 11.5″ Core to replace a generic gas block with a gapping hole (aka your mom) that made my AR super gassy (aka your dad). This Badger gas block with its tight hole (aka your sister) fixed all my overgassed problems.