*Official DC AR15 picture thread*

[BAC]

Originally Posted by Streaker

Is it a suppressor or a silencer?

-B

[Shizzlemah]

Originally Posted by Streaker

My buddy is an SOT and we use the M16 9mm in our F/A classes. He didn't have too much success with the Colt magazines so he had some UZI magazines modified and now the gun works great! Just an FYI. Uzi Mags are super cheap right now. Check out UziTalk.

Is it a suppressor or a silencer?

Colt ran out of their original mags and recently set up c-products to make new mags. I just ordered a few at $17ea. Seems like a great deal since original colts were well over a hundred bucks. I found uzi mags as low as $13, but even owning a machine shop, it's not worth it to disassemble, slot, reassemble. Sure I'll do it at some point just to say I did, bu $17 for a teflon coated mag is a win in my book.

I'd say it is a supressor, but BATF says it is a silencer. It's rated for 35dB attenuation, so it may well be darned silent!

[Streaker]

Originally Posted by BAC

-B

A suppressor relies upon the round to make it subsonic . There will still be a sonic crack from the round when fired, except from a .45 which is subsonic already.

Suppressor have chambers burns off the gas that cause the boom as the burnt powder that comes into contact with the atmosphere. Kind of like a muffler on a car. That's also why they get so hot after a couple of magazines.

A silencer usually incorporates a pre-determined series of holes drilled into the barrel in conjunction with baffles to bleed off the gas of the round as it travels down the barrel. Which cause the round to become subsonic. That way you don't have to worry about what round you fire in the gun. You are not limited to subsonic rounds.

The only reason that I know this is because I have a friend who worked in the industry for some of the big name suppressor and firearms manufacturers. He learned me.

Sorry if this is kind of blabby, but I love this stuff and love to share what little bit of information that I know!!!

Shizzlemah, that is one super cool bad ass looking piece. Plus it has a CDI factor of x1000. Much much much cooler than my FA Uzi and Gemtec. Plus you can redeploy the lower to any platform. My guess is that yours is a silencer. Sweet and congratulations!!!

[Shizzlemah]

Streaker, this is a supressor by your definition. It does not have any internal venting, just a regular barrel and a baffle stack.

By my limited understading - the conventional barrel design relies on subsonic ammo : typicaly 147gr at 1010 - 1030 FPS.

There are other designs with vented barrels designed to bleed off some gas while the bullet is in the barrel. Those designs don't let the bullet get up to speed - so you can use 115 or 124gr ammo and it will still come out at ~1000 FPS.

The difference comes in muzzle energy. 147gr x 1000 FPS = 326ftLb
115gr x 1000 FPS = 255ftLb.

Of course the latter will be subsonic with any ammo, but the former will only be subsonic with dedicated loads. A tradeoff, like everything else.


But can you clue me in on what a "CDI factor" is? I'm thinking 'cool drool initiator' ? :-)


I'm building this as a repro of the DEA CLET model 635SD, and it should be a real hoot when it's together. Using a RLL, and debating milling my own upper so I can engrave it as a '635SD' or similar.

[BAC]

Originally Posted by Streaker

A suppressor relies upon the round to make it subsonic . There will still be a sonic crack from the round when fired, except from a .45 which is subsonic already.

Suppressor have chambers burns off the gas that cause the boom as the burnt powder that comes into contact with the atmosphere. Kind of like a muffler on a car. That's also why they get so hot after a couple of magazines.

A silencer usually incorporates a pre-determined series of holes drilled into the barrel in conjunction with baffles to bleed off the gas of the round as it travels down the barrel. Which cause the round to become subsonic. That way you don't have to worry about what round you fire in the gun. You are not limited to subsonic rounds.

The only reason that I know this is because I have a friend who worked in the industry for some of the big name suppressor and firearms manufacturers. He learned me.

I have never heard that description before. Gemtech, Knight's, and Surefire all call theirs "suppressors" (even the integral ones), while AAC calls all of theirs "silencers"; no rhyme or reason that I can tell. Our friendly ATF calls them "firearm silencers" and "firearm mufflers", defining them as "any device for silencing, muffling, or diminishing the report of a portable firearm, including any combination of parts, designed or redesigned, and intended for use in assembling or fabricating a firearm silencer or firearm muffler, and any part intended only for use in such assembly or fabrication."

Shizzlemah, CDI = "Chicks dig it."


-B

[Streaker]

Originally Posted by BAC

Shizzlemah, CDI = "Chicks dig it."


-B

Yea, Chick's Dig it!!! Sweet Piece!!! I love this stuff!!!

[Shizzlemah]

Originally Posted by BAC

Shizzlemah, CDI = "Chicks dig it."

-B

Heck yeah, last night the GF said I could shoot in the house. And she doesn't even know about the silencer yet :-)

[GingerKid]

My first AR, just got it together this weekend... She goes to the range tomorrow for some lovin' before the IDPA match.

-CMMG 14.5" lightweight Midlength upper
-YHM Phantom perm attach flash suppressor
-CMMG lower
-TangoDown pistol grip
-Troy rear BUIS
-Aimpoint ML2 red dot
-Larue LT150 optics mount

[Ram Rod]

Very nice GingerKid! And I would thank you for posting the first pic on this whole page in a pic thread! That's awesome!

[dialM4murder]