1911 Clamp-On Compensator for Extended Barrels 3D Prototype

[MuayThaiJJ]

I will update as this project progresses!

[MosinVirus]

Do you think it will hold up on the barrel with just a clamp pressure?

I always thought you needed some other form of retention.

Anyways, interesting concept. What are you thinking for final material?

[TKM]

Do you think it will hold up?

[MuayThaiJJ]

Yes I think it will, we are going to use aluminum for final machining. It has more areas of retention than a clamp-on rifle compensator, there is also a set screw on top to prevent the brake from twisting. If one were to put a small dimple on top of the barrel it would really hold it better.


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[MosinVirus]

Will be good to see it in action.

[Tarmy]

[k1dude]

Yes I think it will, we are going to use aluminum for final machining.

I would also consider making one out of brass as well. Compare the performance of the two materials against each other regarding muzzle rise and pick the best performer.

The brass version may upset the balance, but it would also provide a nice counterbalance to muzzle rise since it's a non-reciprocating mass at the very end of the barrel.

I would think this would generate interest with open division competitors.

[MuayThaiJJ]

I would also consider making one out of brass as well. Compare the performance of the two materials against each other regarding muzzle rise and pick the best performer.

The brass version may upset the balance, but it would also provide a nice counterbalance to muzzle rise since it's a non-reciprocating mass at the very end of the barrel.

I would think this would generate interest with open division competitors.

Yes, I agree - especially for CA shooters that don't want to mess with threading, pinning, welding, etc. and get the benefits of a longer barrel.

I will ask Jeff the machinist if he can do brass too.

[walmart_ar15]

I have tried different type of clamp on “compensator” in the past. All end up working lose and had me looking for it down range lol.

Some type of physical constrain is required beyond just friction. Probably some custom barrel to fit the extension. For 1911 the dimension of the barrel in front of the slide can be bigger since the barrel goes in from front instead from the back like other semi.

[MuayThaiJJ]

Yes, we are trying a few approaches that are successful on rifle clamp-on brakes:

Blue Loctite prep around the barrel, to seal from carbon and to be an adhesive in the pocket. 2-3 bolts to clamp. The pocket is slightly undersized from spec to be a very tight fit. Might need a light sanding. Lastly, and the one that I think will help ensure - the set screw on top of the comp - it will need a small dimple made on the barrel. This will prevent and twisting and movement.

[MosinVirus]

What calibers are you thinking, OP?

[MuayThaiJJ]

9mm and 45acp

P.S. we are also making them for CZ75 platform. Since the 6" barrel is available from CZUSA, it can fit into a 1.46" pocket (with 4.6" slide), or a 0.96" pocket if in a longer 5" slide.

[JTROKS]

Really like to see it in action and tested for a couple thousand rounds. Seen a couple of clamp on brakes that shot towards the target, albeit the clamping area was not as generous as your design. I wonder if locking grooves can be machined on the barrel with matching slots on the clamp area of the comp. Keep us posted.

[MuayThaiJJ]

Really like to see it in action and tested for a couple thousand rounds. Seen a couple of clamp on brakes that shot towards the target, albeit the clamping area was not as generous as your design. I wonder if locking grooves can be machined on the barrel with matching slots on the clamp area of the comp. Keep us posted.

That's a good idea, I will look into putting 2 more set screws, one on each flat side of the comp.

[eaglemike]

For reliability/security, you might want at least 6 set screws and divots in the barrel. As others have noted, some sort of this has been tried before. Sooner or later the comp goes flying. Depend on how much machining you want to do/how much money you want to spend, there's ways to create some mechanical linear locking. Your machinist friend might be able to think of one. I've been a machinist for 45 years, and I marvel all the time how people solve problems.

Good luck!