I have and it takes up about 5.5 inches of rail space. Fits very snug. I used some silicon lubricant on the rail and the AFG for the install and recommend you do the same if you get one.
I've got the Samson quad rail and had to take it apart in order to put mine on due to the bayonett lug/fitting getting in the way
I have one on my SWAT...no issues getting it on the rails. I'm not yet decided on whether I like it or not, but I definitely didn't like the vertical fore grip, so I'm hoping this will be a nice compromise.
I noticed that the OP was referring to a P556. There is some question as to whether or not this constitutes a vertical front grip on a pistol (Most uncool without the NFA tax stamp). I don't think anyone has a written ruling on where the ATF stands on these.
Just a heads up to be aware of the potential for problems with installing this on a P556 that is in a non-NFA pistol form...
OK call me retarded but I cant seem to figure out how to get the AFG onto my P556 rails. It wont slide on from the front, so I've taken it apart into halves but assembling the two together while mounting it at the same time looks impossible due to the way you have to rotate the two halves together to get the tabs lined up.
What the hell am I doing wrong?
How are you guys getting this thing mounted on the SWAT rails without taking the rails off the gun? Are you cutting the tabs off?
EDIT: I got it on, I had to snap it together with some force, thought I might break the tabs but it held up ok and went on.
I really dont think this is legal without at least an AOW tax stamp.
It doesnt matter that it isnt vertical, its a forwards mounted grip. The rare integral grips that were built into the machine pistol versions of berettas 1911s and others are illegal when put on a normal pistol, and most of those fold out to be angled well forwards, definitely not vertical. They are legal on the original guns because the stamp for it being a machine gun nullifies the need for aow or sbr paperwork.
There also arent any vertical lines in the sig factory forward mounted grip shown in the graphic on the top right of his page, and I dont think anyone would argue that is legal to mount on a pistol.
Do it if you want. Don't bitch when the ATF kicks down your doors and takes you to jail. They are less than perfect, but you're inviting their presence if you do this, especially if you post about it on the internet.
They wont send you a friendly note telling you you're wrong, they'll just send you to prison.
An email was written to the ATF regarding this issue.
From: (Me) [mailtomygmailaccount)@gmail.com]
Sent: Sunday, December 05, 2010 10:59 AM
To: EPS Directorate
Subject: [NFA] How to register an AR-15 Pistol as an AOW
I have recently built an AR-15 pistol and would like to install a Magpul angled foregrip on it. There is a letter from the ATF that has been posted online where a similar situation was asked about, and the specific question was "Can I lawfully install a Magpul AFG [...] on my AR-15 type pistol?" The answer was "yes". It did not however say "Yes you can without having to register it as an AOW", nor did it specify that in so installing an AFG legally on your pistol AR-15 would entail registering it as an AOW. There is a local licensed manufacturer who has refused to do the installation on the grounds that the AR-15 pistol needed to be a virgin receiver and since I have already made it a pistol, it is no longer eligible to be registered as an AOW. When I asked them why then could I register it as an SBR, their answer to me was "that's different". Ultimately since they would not incur a manucafturing tax stamp and would be able to transfer it back to me at $5 I would much rather have done this than having to install it myself. It is one screw and approximately two minutes of labor. Installation of a vertical foregrip to turn the pistol into an AOW would mean I need to pay a $200 tax stamp to do the work myself but might not even cover allowing the gun to have an afg on it if I were to register it this way.[/quote][/quote]
Response from the ATF
The BATF has said that the adding of a MAGPUL AFG ( Angle-Fore-Grip ) would not make your pistol an AOW.
However, adding a forward vertical pistol grip to a pistol results in the making of an “any other weapon” class of NFA firearm.
Adding a shoulder stock to a pistol results in the making of a rifle. If the barrel of the resulting firearm is less than 16 inches or the overall length is less than 26 inches then you have made a “short barreled rifle” or “weapon made from a rifle” class of NFA firearm.
You will need to submit an ATF Form 1 (with tax paid) along with a law enforcement approval letter and two fingerprint cards to the NFA Branch of ATF, located at 244 Needy Rd., Martinsburg, WV 25405. Once your form 1 is approved and returned to you; only then can you actually make the NFA firearm. You may obtain an ATF Form 1 package on line at the ATF.gov website or by writing the NFA Branch at the above address.
We thank you for your inquiry and trust you find this email responsive to your request.
"Just this week, I contacted my local ATF rep re the authenticity of the AFG ruling letter. He said that it was in fact an authentic letter. In the age of photoshop, this was an important question to have answered. Secondly, I do not agree that AOW issue is at play here. Yes it would have been best if the ATF specifically replied, "Yes, and you do not need an AOW Permit." ...but the intent of the letter would strongly suggest that it was legal to do so w/o the permit. The one thing my ATF rep said was to be certain that all of the elements apply to our intended bill before we commence manufacturing."