Houston Area Residents Charged With Unlawfully Possessing Full Auto Switches

Editors Note: The following press release is directly from ATF. Regular readers of AmmoLand News know our stance on the unaccountable Federal Agency: No comment. We invite our readers to leave their hard-hitting insights in the comments below.

Glock Switch for sale Quarkscm com screengrab 3-7-2022
Glock Switch for sale Quarkscm com screengrab 3-7-2022

HOUSTON – -(Ammoland.com)- A federal grand jury has returned an indictment against the man accused of shooting three Houston police officers as well as several unrelated cases involving unlawful possession of firearms with “Glock switches” or other violations, announced U.S. Attorney Jennifer B. Lowery along with Special Agent in Charge Fred Milanowski of the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF), Chief Troy Finner of the Houston Police Department (HPD), Sheriff Ed Gonzalez of the Harris County Sheriff’s Office (HCSO) and U.S. Marshal Michael O’Conner of the U.S. Marshals Service (USMS).

Full auto switches, or machine guns, are most commonly referred to as “Glock switches.

Five of those charged are set to make their initial appearances today before U.S. Magistrate Judge Christina A. Bryan at 2 pm.

Roland Caballero, 31, Houston, is currently in state custody on related charges and will make an appearance in Houston federal court at a later date. He is charged federally with carjacking, discharge of firearm during a crime of violence, possession of a machine gun and being a felon in possession of a firearm.

“The charges announced today are a sobering reminder of the dangers faced everyday by law enforcement officers around this country,” said Deputy Attorney General Lisa O. Monaco. “The defendant allegedly shot and wounded three HPD officers with a pistol that was converted into a machine gun. The Department of Justice is focused on taking violent criminals off the street and doing so by working side by side with our state and local law enforcement partners.”

The charges against Caballero allege he was in an altercation with his girlfriend which resulted in a 911 call Jan. 27. Authorities responded, but he fled, according to the criminal complaint originally filed in the case. They pursued. According to the charges, Caballero eventually crashed his vehicle, at which time he shot at and wounded three HPD officers using a pistol modified with a full auto switch.

Caballero then fled the scene on foot and carjacked a nearby vehicle, according to the complaint. However, the charges allege law enforcement located him and a stand-off ensued. He, again, allegedly discharged a firearm at authorities, after which he ultimately surrendered.

The indictment further alleges search warrants conducted at his residence resulted in the discovery of several firearms, ammunition, machine gun components and 3-D printers.

In addition to the charges against Caballero, federal grand jury returned indictments Feb. 16 against 19 individuals for unlawful possession of an unregistered machine gun, possession of a machine gun or being a felon in possession of a firearm. [Detailed listing attached.]

Those charges resulted from various traffic stops or responding to scenes, during which authorities discovered the unlawful firearms; through undercover investigations; or as a result of other proactive enforcement efforts.

If convicted of unlawful possession of an unregistered machine gun, possession of a machine gun, or felon in possession face up to 10 years in federal prison. Caballero faces a minimum of 30 years up to life in prison if convicted of carjacking with the use of a machine gun. All charges also carry a possible $250,000 maximum fine, upon conviction.

ATF, HPD, HCSO and USMS conducted the Caballero investigation as well as all or some of the other matters with assistance of Galveston Police Department, Harris County Precinct 2 Constables Office, Texas Department of Public Safety and Brazos County Sheriff’s Office. Assistant U.S. Attorneys in the violent crimes section are prosecuting the cases.

An indictment is a formal accusation of criminal conduct, not evidence. A defendant is presumed innocent unless convicted through due process of law

Houston Field Division

Bureau of Alcohol, Tobacco, Firearms, and Explosives

ATF is the federal law enforcement agency responsible for investigating violations of the federal firearms and explosives laws and regulations. More information about ATF and its programs can be found at www.atf.gov.

Bureau of Alcohol, Tobacco, Firearms and Explosives ( ATF )

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FUCK THE ATF everyone should be left alone if they want a fun switch but yeah this guy is in the wrong since it goes from a domestic dispute with his woman so he runs and shoots up the cars, cops and neighbor hood for what? Nothing she did was worth the crime he ended up committing


These government thugs always like to brag about committing armed robbery, aggravated kidnapping, and violation of rights instead of honoring their oath and going after real criminals. They could have simply said they caught a carjacker and everyone would be cheering.

Instead, they show their true face and that is a face of tyranny.


Ya, Right. Like this scum has 250k. Good luck on that one.


Gram-ma-ma Maria. Auntie Rosita. Cousin Lupe.
And never forget the Heels Up Harris get-outta-jail-quick-&-easy fund.


why is “carjacking” a FEDERAL crime?

Roland T. Gunner

Dude was obviously a turd; BUT- while I know it’s been going on foR a long time, nothing in the investigation should have inherently resulted in a search warrant of his private residence. Driving around town slapping around your girlfriend and shooting at cops should get you arrested and imprisoned; not get your private residence sesrched. Well, unless the guy is dumb enough to tell the police, “yeah, I got more machine Glocks back at the ranch”. Police abuse of search powers, both with and without a wsrrant, is horrible in the US, and its worst at the federal level.… Read more »


Sounds like they have pretty clear probable cause to believe that he was directly involved in the illegal transfer and/or manufacture of a machine gun. I’m not a lawyer but it seems like his direct involvement provides justification for a warrant to search his home for evidence regarding the manufacture and/or transfer of that machine gun. If he hadn’t used a machine gun, he was still a felon in possession of a firearm. They could probably still get a warrant to search his home but it would have been more narrowly limited to evidence related to the illegal transfer of… Read more »


So violate his rights. Got it.

Paul O.

The perp actually drove to his residence and barricaded himself inside then surrendered later. Real genius in action.


Felon in possession of a firearm converted to full auto is a good reason to do the search, no idea of what he said to law enforcement after he was arrested or his criminal history.
He probably Is a gangbanger with a long jacket



BATFE working with local law enforcement again:

  • Special Agent in Charge Fred Milanowski of the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF);
  • Chief Troy Finner of the Houston Police Department (HPD);
  • Sheriff Ed Gonzalez of the Harris County Sheriff’s Office (HCSO); and
  • U.S. Marshal Michael O’Conner of the U.S. Marshals Service (USMS).


Sheriffs in “red” states like to work with the BATFE to enforce never-ending gun control laws.

Don’t worry though – they’re elected.


BATF&E laws ok to enforce with local LEO but immigration laws off limits.


Not in King County (Seattle)!


I’d mention my county but I don’t want to get my law enforcement in trouble because I hear on the scanner, no ID, Hispanic, call INS to do a pickup.

governess Kate shit stain brown says she will jail or fire any police that don’t comply with her sanctuary state rule.

OreGONE where in my county if you get caught stealing in wally world you get arrested no matter what you steal.


awaiting approval. Don’t know what word triggered it.


He’ll be out in 5 for good behavior to do it again. He might even get a job at the FIB to be a FFer. lol


After his short term & release for sure he will repeat offend & be part of Under Radar Anti-Fa / BLM / Wit Protect / CI (confidential informant) programs.


To bad your response isn’t BS. They will never get the 250k though.


f all scumbags and their extended families. particularly the atfyou


Matt in Oklahoma

Lol like they don’t work for 20+ years and live in your neighborhood, go to your kids schools, shop at the same place and go on vacation with y’all. I retired as a LEO a while back and everyone around here knew me. My neighbor an ex con has my number. We help each other take care of our chickens. No one’s worried about it. Only reason y’all want it published is because you already know but are too scared. Your hoping to find “someone” to do something as long as it ain’t you. Now settle down and learn how… Read more »

Roland T. Gunner

I guess we see how guys like you roll, up there in Okrahoma. Do us a favor and stay there.


I have felt for a long time that most talk and few do. Just listen to politicians and so called experts being interviewed by media (yes conservative media also), answers are always “someone should or we need to or… well you get the gist”. Best and most direct post I have read in a long time Matt in Oklahoma..

Viper G2 Bronze

Why? Because you are too lazy to find them on your own? They are not hiding. You are part of the problem.


I am pretty sure when you modify firearm so it fully automatic and then shoot cops with it while committing crimes that you are not a member of a well regulated militia. Infact just a common criminal that is lucky he is alive after wounding law enforcement officers. He was not even suppose to be in possession of a firearm due to his criminal past ! This just proves why law biding citizens need to pack a firearm at all times because criminals do !


Now if we could only get Anti gunners to realize that.

Matt in Oklahoma

I’m no fan of the ATF but I’m no fan of scumbags either. Whatever pissy fit you thought was gonna happen from this article isn’t going to because most people feel the same about scumbags who beat people, shoot up neighborhoods, violently steal folks cars so they can’t work, fight the cops while endangering the public, run from the cops while trespassing, destroy property and other’s vehicles just so they can stay out and get high and do what they wanna do with total disregard for the rest of society.

Deplorable Bill

“A well regulated militia, being necessary to a free state the right of the people to keep and ear arms SHALL NOT BE INFRINGED.” The second amendment, THE law of the land. EVERY free American citizen has the right to keep and bear arms, even fully automatic arms and anything else a militia might use. Thus there are no firearm violations in this case EXCEPT for the atfe, the prosecutor etc. who have disavowed their oath of office by attacking the constitution. Treason and tyranny anyone?

Arm up and carry on


but there clearly WERE crimes perpetrated by this dirtbag. He was shootint AT other humans wiith no justification. He stole someone’s car. Put him behind bars for THOSE crimes and be done with it. If his priors had been taken care of and he’s out free, everyhting taken care of on those raps, WHY shuold he not be able to possess a handgun? And WHY if he can’t possess a handgun is he left out in public to roam about at will? I don’t care WHAT sort of “arm” he used, he used it to harm or threaten others. call… Read more »


I’m surprised he didn’t trip, fall and hit his head killing himself on the way to the cop shop. I don’t get upset when stuff like that happens to trash like this. It saves taxpayer dollars and society.