I mentioned this in another thread, but in the event no one sees it there, I could still use an answer. I bought the upper in the link (Had Flash hider removed) and I know a threaded barrel is illegal. I would like some sort of comp on it, but if it has to be pinned/welded, and I later need to replace the gasblock, will I be able to? Are there decent comps that are the same diameter as the barrel? Also, do you guys have any recommendations for comps/brakes? I just don't want to have to replace the whole barrel assembly in the future if work needs to be done on the gasblock, or something like that. I don't want to really break the bank for the brake/comp either.

 

http://www.jsesurplus.com/custom20wilsonarms1x9molygovtprofilerailheightgasblockcompleteupper-1-1-1.aspx

 

Anyway, let me know what you guys think. I'll probably take it to Arms-N-Ammo to have the comp work done.

Honestly, you would probably be better off just buying a new upper if you want to change things around. Just pick a comp you like, get it pinned, and go to town. In the event you decide to change things up, sell the current upper and buy another, or just add another upper to your collection.

Honestly, you would probably be better off just buying a new upper if you want to change things around. Just pick a comp you like, get it pinned, and go to town. In the event you decide to change things up, sell the current upper and buy another, or just add another upper to your collection.

 

Damn, what a pain. I'm not a huge AR fan, this is the only upper I've seen in months of looking I really like, without a lot of work, or anything. I guess I'll keep it the same, I was going to put a PRI flip up gasblock on it, but I don't want to spend that kind of cash right now.

 

Still could use recommendations on comps, I don't know what difference there is.

The nordic tactical comp will allow you to gt a gas block off over it and is reasonably effective. $40 too, so not pricey either.

 

http://shop.nordiccomp.com/Nordic-Components-Tactical-Compensator-223-Black-Oxide-CMP-TC-22-BK.htm

I have the SureFire on mine. It is on the expensive side, but it works VERY well.

http://www.surefire.com/mb556k-muzzle-brakeadapter.html

My upper on order will have a Troy Claymore. This design intrigues me, as it blows the blast forward. No more dirty looks at the range when your muzzle brake is blasting gas and noise sideways in their direction.

A permanently installed thread protector would make it compliant and safe you the expense of a comp. Would also closely match the diameter of the barrel, although I think it's more complicated than that in most instances where you're changing significan't aspects of the upper.

There isn't any advise from the attorney general, or specific listing on the laws as to what "permanently" attached means, but most people use the guidelines from the federal assault weapon ban. One of my AR's has a blind pinned muzzle brake, the other is attached with 1000 or 1500 degree silver solder. The silver solder is the easiest to apply. For legal purposes, i removed the lower from the upper and had it in a different location while i was doing the work.

 

The blind pin that was installed by Stag required a milling machine for removal without destroying the brake. The silver soldered brake required a heat sink on the barrel, and localized heat on the muzzle brake itself to avoid damaging the barrel.

 

I believe the gist of the law is to avoid someone from being able to easily attached a suppressor or flash hider. But the way the law is written, as usual, will catch people who otherwise would innocently want to fix their rifle or change something into criminals.

 

I wish someone who just make a barrel with an integral muzzle brake cuts and a target crown.

Another vote for the nordic comp raz-0 linked. The other things is that you can use 2 piece gas blocks (both low profile or with actual sights) which don't need to slip over the muzzle so removing them does not involve going over the brake.

I like my PWS FSC556. Not the cheapest... but I did notice a slight improvement keeping the muzzle down.

Not sure if anyone will read this post, but I don't want to start a new topic for it. Vertical foregrips, are they legal? You know, the handles that come down off a rail in front of the action, are they okay to have?

Not sure if anyone will read this post, but I don't want to start a new topic for it. Vertical foregrips, are they legal? You know, the handles that come down off a rail in front of the action, are they okay to have?

Yes on a rifle. No on a pistol.

Yes on a rifle. No on a pistol.

 

Well, with a 20" barrel, I doubt even NJ could think my AR is a pistol XD. Good, I like the longer/heavier weapons, but the vert grip really is nice to have.

 

I assume bipods are okay as well?

Well, with a 20" barrel, I doubt even NJ could think my AR is a pistol XD. Good, I like the longer/heavier weapons, but the vert grip really is nice to have.

 

I assume bipods are okay as well?

 

Yup.