Terminator03

This is an interesting topic, and something I’ve also considered doing. I was planning to shorten mine so that it was maybe 18 1/4” INCLUDING the muzzle brake, then pinning that like you have to do with an AR to keep the 16” overall barrel length. I agree with those saying it’s not worth the trouble and cost to chop the barrel an inch, but if using a muzzle device permanently attached, you could lose 3-4”, depending on the device used.

Hopefully someone will chime in and help with some info on this because I definitely want to add a side folding stock to mine once I leave the People’s Republic of MA where such things aren’t legal. I do have a home in GA though, so it will happen sooner rather than later! oh, and I’d want it to be able to fire with a folded stock if possible so that would be good info as well.

Thanks, that makes a lot of sense.

Does this work with the stock rear sight, or does that need to be replaced with another type/height to work with this?

I've had my S-12 dialed in for a long time now so that it's very reliable with all types of ammo, including cheap Wallyworld low-brass. I did a ton of internal mods including gas ports, fully profiled and polished bolt and carrier, JP stainless guide rod, Auto-plug, etc. etc. Well, recently I was placing an order to CSS anyway, so I decided to try out their performance puck just for the heck of it. I haven't had time for the range yet, but during the install, I noticed that the CSS version is quite a bit shorter than the stock puck. The stock measures .587", while the CSS version measures .527

Well, I certainly hope the CSS GK-01 is as good as everyone says because I ordered one a couple days ago while it was on sale. I have a Krebs flash hider which I have liked so far, but recoil has never been much of an issue for me, so this should be an improvement no matter what. I want to shorten the barrel anyway, so since I need to perm whatever I put on, I decided that the CSS one looked really cool and most say it handles recoil well so I felt it was a good all around choice. Not sure if I'll bother with chokes yet.

Thank you. That is actually what I've been leaning towards for awhile now. I was originally going to do it with the Monster, but as you pointed out, the weight becomes a factor with a long steel brake like that. How much of an effect on the gas system does it have if you only cut it to make it 18" including the permed GK-01? My gun runs flawlessly on even the cheap wallyworld crap now, so hopefully it wouldn't alter it too much. I have fully polished and profiled bolt, polished rails and trigger parts, and of course port work. I'm also running an Autoplug. I don't mind doing more if necessary,

Awesome! I NEED to do this soon! I love the shorter look, it is so much more balanced aesthetically.

Thanks Malcolm. I was going to ask "how" you pinned it with the dissimilar metals, but that makes perfect sense. I was thinking that as an alternative you could have just hit the tops of those 8-32 buttonheads so that they couldn't be removed with a wrench, and that would likely be considered as "permanent" too - especially if you spot drilled the bushing so they could lock into it. Awesome job with the CF tubing! Where do you source something like that? I could think of several applications not even gun related to use something like that. Brian

Gregdepot, I know aluminum is welded all the time, but you can't weld it to ferrous metal (steel) such as the barrel without getting really creative with bushings and things like others have done. Malcolm, that is gorgeous! Who makes that hand guard?

Thanks for starting this thread because I've been thinking of doing the same thing for over a year now. Isn't the CSS brake aluminum? I can't remeber if it was that one or a different one, but how would you permanently attach it?

Well, I don't have my s12 as my primary HD weapon, but do keep it ready to rock with a 5 round mag of 00, and the bolt locked back so it is ready to rock with a simple click to release the bolt. I have it worked now so that I trust it to be 100% reliable, but into its a bit too cumbersome to be able to maneuver well in most homes. For that reason I opt for a handgun, or even one of my carbines over the s12. I personally think that a Keltec KSG Would be a much better choice if you prefer a shotgun than anything previously mentioned including the s12. This is because the Keltec is an extremely c

Well, its no more/less stupid that the other stuff we have to deal with here in MA, such as adjustable or folding stocks need to be pinned, bayonet lugs need to be cut off, etc. Its all just feelgood nonsense made up by idiots that no nothing about guns to begin with. I always laugh and tell people that my AR with 30 round mag isn't truly deadly until I slip a bayonet on the end of the barrel.

That looks similar to mine except I have the additional cheek rest which I highly recommend if you can get it. I'm not sure about that pin being for a sling. I was actually thinking about putting some type of sling on mine, but haven't had a chance to mess with it for awhile.

I run one made by Choate and it is super comfortable to shoot. I had to do it for the same reason since they only allow 1 "evil feature" where I live for semi auto shotguns and the detachable mag takes that. I really wanted to do it with the pistol grip, but now that its done, I'm not sure I'd switch it even if I legally could.