My Bumps, My Bumps, My AR-Stocky Humps

Bump fire stocks (or just “bump stocks”) are replacement stocks for semiautomatic rifles that let the shooter simulate automatic by firing several shots without having to re-squeeze the trigger, are a hot topic in the news after Las Vegas shooter Stephen Paddock used them as part of his deadly rampage.

Unlike the overwhelming majority of our press corps, I had actually heard of bump stocks before the shooting, and seen videos like this, before the shooting:

Usually the NRA’s reaction to any call for gun control is “See you in Hell first!” However, their reaction to a call for bump stock regulation was quite different:

“In the aftermath of the evil and senseless attack in Las Vegas, the American people are looking for answers as to how future tragedies can be prevented. Unfortunately, the first response from some politicians has been to call for more gun control. Banning guns from law-abiding Americans based on the criminal act of a madman will do nothing to prevent future attacks. This is a fact that has been proven time and again in countries across the world. In Las Vegas, reports indicate that certain devices were used to modify the firearms involved. Despite the fact that the Obama administration approved the sale of bump fire stocks on at least two occasions, the National Rifle Association is calling on the Bureau of Alcohol, Tobacco, Firearms and Explosives (BATFE) to immediately review whether these devices comply with federal law. The NRA believes that devices designed to allow semi-automatic rifles to function like fully-automatic rifles should be subject to additional regulations. In an increasingly dangerous world, the NRA remains focused on our mission: strengthening Americans’ Second Amendment freedom to defend themselves, their families and their communities. To that end, on behalf of our five million members across the country, we urge Congress to pass National Right-to-Carry reciprocity, which will allow law-abiding Americans to defend themselves and their families from acts of violence.”

So the NRA just signaled it’s willingness to sign on to a national gun control regulation. You better head out early, as the lines for the ski lodges of Gehenna are going to be out the door.

Of course, NRA support was contingent on getting national carry reciprocity in return, so watch congressional Democrats derail the deal, probably by tossing in the usual knee-jerk demands for for banning other “scary” gun part, higher capacity magazines, etc. Because NRA.

I’ve never fired a bump stock, and don’t know anyone who owns one. To get a better handle on this issue, I sent a few questions to old friend and master class shooter and trainer Karl Rehn about bump fire stocks.


1. My impression is that bump stocks are generally not well-regarded in the majority of the firearms community, and that they’re not allowed at the overwhelming majority of shooting ranges. Is that true? Do you allow bump stock firearms at any classes or events at KRTraining’s A-Zone range?

I’ve never had a student show up for a long gun class with a gun with a bump fire stock. They aren’t considered professional grade gear. You won’t find a SWAT team or a Navy SEAL or a professional shooting competitor using one.

I do not prohibit the use of bump stock equipped guns in my long gun classes. I’ve just never had anyone show up for a class wanting to use one. The drills we run in my long gun classes generally don’t involve firing more than 3 rounds at any target, and accuracy is part of the scoring for every drill.

2. Is it possible to rapid fire a bump stock equipped gun accurately, or is it a “spray and pray” weapon?

I haven’t used one. See answer #1. People serious about shooting quickly and accurately, or even just accurately, don’t use them.

3. What, if any, legitimate use cases are there for bump stock guns besides “having fun on your own land?”

It was originally invented as an aid for disabled shooters to operate a rifle more easily.

4. Besides the ill-conceived and ill-fated “Assault Weapons” ban, has the federal government ever attempted to regulate rifle stocks, or indeed anything beyond the receiver?

There has been considerable controversy and confusion associated with the ‘pistol brace’ which is sort of a stock that can be attached to pistols made from rifle lowers. See https://www.sigsauer.com/press-releases/atf-clarifies-ruling-pistol-stabilizing-braces/.

Will a bump stock ban have any impact on crime? Unlikely. If the shooter had not had the bump stock, could he have fired just as many rounds in the same time? Probably yes.


I would oppose a bump fire stock ban on general principles of federalism, and the fact that it won’t actually prevent any mass shootings, nor will they actually prevent new bump stocks, since bump stock designs are readily available for 3D printing.

That said, if you’re going to sacrifice any firearm component on the alter of appeasing mass hysteria, heavier regulations on bump fire stocks (which have always struck me as a quick and dirty hack) is probably the best option. Especially if we get national carry reciprocity in the bargain.

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One Response to “My Bumps, My Bumps, My AR-Stocky Humps”

  1. BigGator5 says:

    I’ve given my two cents on the matter.

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