It is quite common practice to use rifle scopes on specialty pistols.
Now add a protrustion behind that xp100 (such as what would be the case with an AR pistol and pistol buffer tube) and see if we don't have another clarification down the road stating shouldering a pistol buffer tube turns our AR pistols in to SBR's.
Edit: I'm not saying add anything behind the xp100, I'm using it as an example that that won't be on the ATF radar because it has no needed protrusion towards the shooter.
It seems like it only takes a youtuber to misuse an item to create further regulation, so all it will take is for someone to utilized a pistol buffer tube against one's shoulder with a short eye relief scope and all the sudden they will be moving the goal posts again.
Here is where the Factoring Criteria document talks about eye relief which is on Page 55
View attachment 1129796
https://www.atf.gov/rules-and-regul...armswithattachedstabilizingbracespdf/download
This exact scenario is clearly spelled out in the document already. Adding a buffer tube to that xp100 would already make it into a rifle regardless of what optic is on it because they already made it clear in the rules that adding a buffer tube to a gun which does not need one to function will be considered a rearward attachment meant to extend the length in order to be shouldered.
225 posts and no clear interpretation of the ruling has been presented.
ATF should be the name of a convenience store not a government agency.
There has been many clear interpretations presented, but they are intertwined with the speculations of those that didn't bother to read or understand it.
If you read my edit, I specifically said I'm not suggesting to do that, what I'm saying is that because of the looks of the XP100's they aren't deemed shoulder-able; but IF they had a buffer tube on the back, like an AR pistol will they will down the road change the rules as both you and me know there will be youtuber's shouldering AR pistols with pistol buffer tubes 121 days after this gets posted to the register.
My discussion is what will come of AR pistols with pistol buffer tubes. Once they start getting shouldered the ATF will likely come back and ban AR pistols, or ban the shouldering of the "required equipment" aka pistol buffer tube, without regard that it is a necessary item for the function of the firearm. That is my point.
This edict is clear, as far as it is constitutional. There is no trust that the ATF will abide by anything that is presented, this is the problem with those who think we can just abide by what is written, it is all subject to interpretation.
If it's clear, please tell me what quantifies too much shoulder-able space on the back of an AR?
As it is so clearly written it is not understood whether a person can put a thin layer of duct tape on top of their pistol buffer tube without creating an illegal SBR.
There have been many interpretations presented that are clear to the presenters.There has been many clear interpretations presented,
There have been many interpretations presented that are clear to the presenters.
There is also an old saying - you always find exactly what you are looking for.There is an old saying, you can explain it to someone, but you can't understand it for them.
I don't mean that as a dig on anyone, I mean that everyone should read it for themselves.
There is also an old saying - you always find exactly what you are looking for.
All the comments here make a point about rules that are subject to interpretation.
Even though the ATF is no longer using the Worksheet 4999, They have stated in ATF 2021R-08F - Factoring Criteria that they are using the point system in the 4999 for the new criteria. Here is what the 4999 says about peripheral accessories to include scopes. Note again where it states "scopes with eye relief incompatible with one hand fire" . This was incorporated into the new document on page 55
View attachment 1129798
One caveat is the ATF specified short eye relief optics are the optics they are essentially stating are only able to be utilized with a "pistol" that is being held in such a way that suggests it is a rifle needing to be held close (i.e. shouldered) to get one's eyes in correct alignment.
I don’t see any ambiguity here.
The confusion ONLY comes from folks like @12Bravo20 who are convoluting the ATF’s use of short eye relief optics as a secondary factor (or tertiary in the case of the original score card) effectively confirm whether a firearm was designed to be a rifle or not. There has never been any ruling by ATF to suggest that - independently - short eye relief scopes manufacture a rifle, and there cannot be, as a pistol without a stock or any attachment which can serve as a stock (the entire material basis of this current issue in clarifying the definition of a rifle) is not a rifle.
Simplifying this: you see a “No Hunting without written permission” sign, and you see someone hunting behind it. Are they breaking the rules? Not if they have written permission. But if you insist on only reading “no hunting,” then you waste a lot of energy trying to pretend the law says something which it doesn’t.
In EVERY instance of any documentation from the ATF we’ve ever been presented, the short eye relief optic has ONLY been a corroborating secondary (or tertiary) factor in determining if a firearm WITH AN ATTACHMENT WHICH CAN BE SHOULDERED, and has NEVER been presented as an independently determinant criteria.
Why? Because the ATF has been exceptionally consistent that anything without any means of being fired from the shoulder is not and cannot be a rifle. This ruling itself is ONLY a redefinition of what it means for an attachment to be designed for shoulder firing - but without shoulder firing inherent in the design, the scope eye relief isn’t in question.
So everything regarding the above hangs on the statement in this brief that, a part of a pistol required for it's function cannot be considered a shoulderable item.
Got it. So I guess we'll just have people go back to shouldering pistol buffer tubes, no problem. I'll make sure I keep the dust particles off the pistol buffer tube so it doesn't constitute an illegal SBR by creating a shoulderable item.
So why should people go and get their pistol AR's registered as an SBR with all the oversight and restrictions it comes with again?
So why should people go and get their pistol AR's registered as an SBR with all the oversight and restrictions it comes with again?