Benelli M4 922(r) Compliance & tube removal.

[mavericksun]

Nope. The standard pistol-grip stock that comes on the M4 only counts as 1 part, as does the optional non-pistol-grip stock. The only way for it to count as 2 parts is if it a Benelli C-stock, which is why almost everyone buys a USA-made c-stock instead. I didn't, though, I like the Benelli one too much!

The original parts count is 13 parts. When you change to the C stock, the parts count is changed to 14 then you have to change out 4 parts instead of 3.

[Mitch]

Who came up with this insane law anyways? I mean, seriously, what were they trying to accomplish? Is it supposed to be some kind of patriotic thing, promoting USA-made products? Then why aren't we allowed to buy USA-made Glocks?

It's based on the 1968 Gun Control Act that sought to restrict the importation of firearms that don't have a "sporting use."

Senate vote: https://www.govtrack.us/congress/votes/90-1968/s558
House vote: https://www.govtrack.us/congress/votes/90-1968/h398

No. 922r is about the rule that foreign made guns can not have more than a certain amount of ammo capacity.

No.

[CandG]

The original parts count is 13 parts. When you change to the C stock, the parts count is changed to 14 then you have to change out 4 parts instead of 3.

Yep, so most most people who replace the magazine use a full-length USA-made magazine tube and follower, which leaves them with only needing to replace the stock or the foregrip to achieve 922r compliance. In my case, I also replaced my standard stock with a Benelli c-stock (pinned), which means I needed 2 more USA parts in addition to my magazine and follower. The first was a surefire railed forend in my case. Out of the remaining parts left to replace, the hammer is probably the easiest and least intrusive thing to replace. Honestly, if you just buy a USA hammer and hang on to the receipt, it looks identical to the factory benelli one...

[fmxmyway]

With the very kind & generous help of a couple of other Calgunners (Osis32 ), I just went through this as well. The loctite on mine seemed to have been applied with a trowel. What I was told is to apply the heat gun only to the receiver. What you do not(!) want is for the tube to expand from the heat. This only makes removing it more difficult. Apply the heat to the receiver, only, in order to melt the loctite. The aluminum has a much higher coefficienct of expansion/contraction and will expand faster and much more than the steel tube. That delta will help break the bond of the loctite as much as melting it does.

If, like me you opt for the titanium tube be very careful threading the new tube into the receiver. If you cross thread it and force it, the titanium threads of the tube can and will utterly destroy the female threading in the aluminum receiver. No big deal just don't get impatient after all that time with the heat gun and try to just power the new tube into the receiver. This is true of the steel tubes as well but its not nearly as easy to totally destroy a magnificent weapon as it is with the titanium.

Thanks SF for sharing this info. I definitely would have been one of those cats to cross thread the receiver because I am extremely impatient. Just placed my order for the Carrier Comp titanium model so Im glad you chimed in on this.

[fmxmyway]

Yep, so most most people who replace the magazine use a full-length USA-made magazine tube and follower, which leaves them with only needing to replace the stock or the foregrip to achieve 922r compliance. In my case, I also replaced my standard stock with a Benelli c-stock (pinned), which means I needed 2 more USA parts in addition to my magazine and follower. The first was a surefire railed forend in my case. Out of the remaining parts left to replace, the hammer is probably the easiest and least intrusive thing to replace. Honestly, if you just buy a USA hammer and hang on to the receipt, it looks identical to the factory benelli one...

Did you get the Geissele hammer? Do any of those hammers make a difference on the trigger/performance or is it strictly for compliance?

[laurelpark]

This thread brought back memories... I did two M4s and the first was a breeze - just a few minutes of heat to the point where the tube meets the receiver and it unscrewed without any drama. The second gun, though, was a nightmare. Same experience as described - took ten minutes, filled my house with smoke while heating things up, and when it finally unscrewed, Loctite was gooped on there. I think Benelli screwed up on a few of the guns - the first gun clearly had a white or blue Loctite in it, and the second gun looked like red Loctite. The red stuff is the high-temp stuff and you almost need to get things red-hot to break it free. Mine got so hot that the rubber stock started deforming where it meets the receiver.

[osis32]

Yeah I got lucky with the one I helped SF out with. we heated it for about 5 minutes in my vice and I twisted it bare handed fairly easily. The goop on there looked more green than blue but my guess is it was the blue stuff because it was minimally heated. Ive dealt with the red stuff at work and had to rose bud it with my torches. of course that would only work on steel because it would melt aluminum.

anywho not to thread jack but since were on the subject of M4s the stock of SFs m4 is not centered properly. what I mean is the the stock tube and therefore cheek piece and butt bad or not in line and kicked to the side. I couldnt quite tell how to remove it and or square it up. I was tired and out of time and didnt wanna break it so I let it be. any pointers would be appreciated.

[laurelpark]

If you mean the stock looks like it is twisted a bit so that it's not quite lined up with the rest of the gun, it's really easy to adjust. Just remove the trigger group by pushing out the takedown pin, and the stock will "unscrew" from the rest of the gun. I've seen a few of them where they weren't quite screwed on perfectly - and it's really easy to fix. It's also possible to twist the stock a bit while going through this mag tube replacement ordeal - and it will just twist right back to where it's supposed to be since the whole thing is screwed onto the stock tube.

The big thing to remember is that these stocks don't come off the way you think they would. If you try to remove them by removing the nut at the end of the stock, it will break it and the only fix is to buy a new stock...

[mavericksun]

It's based on the 1968 Gun Control Act that sought to restrict the importation of firearms that don't have a "sporting use."

Senate vote: https://www.govtrack.us/congress/votes/90-1968/s558
House vote: https://www.govtrack.us/congress/votes/90-1968/h398


No.

922(r) point to 925(d)(3) which leads to AG approving criteria for "sporting" firearms for importation.

https://www.atf.gov/files/firearms/industry/january-2011-importability-of-certain-shotguns.pdf