Form 1 45 ACP can with booster

Yes, it can be legal to make a silencer. For everything Form-1, from silencer designs that are easily made, to filing forms with the BATF, to 3D modeling. Remember, you must have an approved BATF Form-1 to make a silencer. All NFA laws apply.

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Michael Black 47
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Re: Form 1 45 ACP can with booster

Post by Michael Black 47 » Wed Mar 18, 2015 7:51 pm

The video was solid and it looks good. do you plan on coating the suppressor anytime soon and doing the engraving

Scared_of_zombies
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Re: Form 1 45 ACP can with booster

Post by Scared_of_zombies » Wed Mar 18, 2015 10:31 pm

McLarenross wrote:I choose stainless for 2 reasons.

1. With the current rules once its built your done. No modifications, no repairs, no replacement parts, nada. Stainless is a lot more robust that aluminum and will last a lot longer. Stainless can also be made much thinner than aluminum and be much stronger, albeit still a tad heavier. Also I use a lot of lead cast ammo so I wanted to be able to use "The Dip" to clean my baffles.

2. I had almost all the stainless on hand for this already. Just had to order the tube.

I originally planned to make this can from 100% Titanium but it turned out to be cost prohibitive.

On another note, I got time to clip the baffles today. I clipped the middle 8 baffles and left the blast baffle and end baffles symmetrical. I did this cause Ive heard that it promotes accuracy. I did this to my centerfire can aswell. No idea if it was beneficial on this can or not.

Image

After I clipped the baffles I put it back together and said screw it, Im shooting in the back yard. I have a bunch of woods behind my house so the direction of fire is safe. I shoot suppressed 22 in the yard all the time. I was worried the 45 might be too loud for the neighbors though. I did video it for yall to see. This is on my 5" 1911 with 230gr hard cast over 5.0gr Bullseye @ ~800fps. Before this I tested with a single round a few times to see if it cycled and it locked back every time so I went for 5. Here is the video.

https://youtu.be/WAUSrrE_mAE
I'm curious what spring you used. How many pounds was it? Do you remember which one it was exactly?

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McLarenross
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Re: Form 1 45 ACP can with booster

Post by McLarenross » Wed Mar 18, 2015 11:13 pm

This is the exact spring I ordered. They come in a pack of 3 even.

http://www.mcmaster.com/#9657k363/=wdcqxw
There are no "ex-Marines", just Marines who arent active anymore.

slothead
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Re: Form 1 45 ACP can with booster

Post by slothead » Sat Mar 21, 2015 9:16 am

McLarenross wrote:Finally got my 45 can done today. I went through about 100 design revisions in CAD before I settled on this one. The baffles are tsudo-CTA style but with smooth 60* cones. Including the nested one inside the far endcap there are 11 baffles. Yes 11. Overall length is just 7.75" with the booster. It is completely constricted from 316 stainless steel. I used a SilercerCo Osprey/Octane piston cause it was just easier that single pointing to a shoulder in such a small hole. I still need to clip the cones so dont beat me up on that. I have not gotten to shoot this yet but hopefully next weekend it will fire.
Beautiful work Corporal. Well done.

Scared_of_zombies
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Re: Form 1 45 ACP can with booster

Post by Scared_of_zombies » Sat Mar 21, 2015 9:19 am

McLarenross wrote:This is the exact spring I ordered. They come in a pack of 3 even.

http://www.mcmaster.com/#9657k363/=wdcqxw
Awesome. I was recommended and got this one for a 9mm and was wondering the spring differences for a .45.

These came in a 5 pack but the ID is likely too small for a .45 sized piston.

http://www.mscdirect.com/product/detail ... m=00603886

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McLarenross
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Re: Form 1 45 ACP can with booster

Post by McLarenross » Sun May 10, 2015 5:22 pm

Been a little while but I finally got to shoot a better video of this can on my 1911. In person the sound of the round impacting the plate rack was louder than the gun itself. I tried to make a few more videos but the battery in the GoPro died.

https://youtu.be/qownVowo0YM
There are no "ex-Marines", just Marines who arent active anymore.

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Michael Black 47
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Re: Form 1 45 ACP can with booster

Post by Michael Black 47 » Sun May 10, 2015 5:55 pm

McLarenross wrote:Been a little while but I finally got to shoot a better video of this can on my 1911. In person the sound of the round impacting the plate rack was louder than the gun itself. I tried to make a few more videos but the battery in the GoPro died.

https://youtu.be/qownVowo0YM

The performance of your can there is impressive. get job on it. also have you tried running it wet at all?

catman711
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Re: Form 1 45 ACP can with booster

Post by catman711 » Wed Dec 30, 2015 4:57 am

McLarenross

How much did you preload the spring in the booster?

Thanks

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delta9mda
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Re: Form 1 45 ACP can with booster

Post by delta9mda » Thu Dec 31, 2015 2:02 pm

good job. really
NP

RogerRonas
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Re: Form 1 45 ACP can with booster

Post by RogerRonas » Sun Jan 17, 2016 3:00 am

Awesome work, looks great.
Question on the piston threads :
What are thread specs to thread tube ID"
Thanks
Roger
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Hard_ware
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Re: Form 1 45 ACP can with booster

Post by Hard_ware » Sat May 28, 2016 6:36 pm

Nice build!

Midway has Advanced Armament Co (AAC) ASAP Replacement Piston EVO-45 Suppressor .578"-28 Thread Stainless Steel units to make a booster for $33.00 on clearance

http://www.midwayusa.com/product/292321 ... less-steel
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Hasdrubal
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Re: Form 1 45 ACP can with booster

Post by Hasdrubal » Sat May 28, 2016 7:44 pm

Great find, just ordered two of them. Sitting on a pile of form 1s after a bout of 41p panic a while back, so they will be put to proper use.

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