ER Shaw Barrel is here - 16 1/4 long 8.75 under handguards .75 stepdown for gas block in carbine position, step down to 7.25 until last 3/4 inch then step down to .700 until threaded for final .6 inch w/ 1/2x32 it appears.
Heavy little begger. Was over on another board and posted this Thread about a piston upper...
http://www.assaultweb.net/cgi-bin/ul...2;t=006009;p=0
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Originally posted by Artful:
Stupid question if I get a 300 whisper barrel can it be used on your piston upper?
And would it make more loud noise as it's tapping high pressure gas to drive the piston then dumping it into the atmosphere...or does it have a gas cutoff to keep un-needed gas from escaping ie weapon noise that the suppressor can't eliminate...
And good photography and nice subjects too.
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Please email us at
Sales@POF-USA.com
so we can discuss you 300 Whisper project.
Mike Brown of Jet Suppressors has been using our gas piston uppers for over a year with great results.
You may want to contact him at:
www.jetsuppressors.com
Best regards,
Frank
Patriot Ordnance Factory (POF-USA)
www.POF-USA.com
Sales@POF-USA.com
So that's the next step after I save up the money...
Advanced Armament Corp makes the AAC Cyclon is a Muzzle can for .30 caliber weapons.
http://www.advanced-armament.com/pro...es/cyclone.asp
Fluff from their site
The CYCLONE is a thread-mounting silencer for 7.62mm bolt action and semi-automatic rifles. Constructed entirely from welded 300 series stainless steel, the 8.38" Lg x 1.50" diameter CYCLONE is the most compact and durable 7.62mm rifle silencer on the market. The computer optimized baffle stack of the CYCLONE delivers a substantial frequency shift, and the resulting muzzle report is indistinguishable from the ballistic crack of the projectile in flight. The weapon's flash signature is completely eliminated, and recoil is reduced to the extent the shooter can actually see bullet impact through the scope. The slight added weight of the CYCLONE will assist in reducing barrel harmonics which can equate to a significant increase in accuracy with many host-weapons. Delivered with standard 9/16-24 threads, the CYCLONE is available with other mounting configurations upon special request.
Technical Information
Caliber 7.62mm
O.A. Length 8.38 in (213mm)
Diameter 1.5 in (38mm)
Weight 31 oz (886g)
Degree of Suppression -30dB (Dry)
Construction Materials 300 Series Stainless Steel
Standard Finish Bead Blast Stainless Steel
Optional Finish Socom Flat Black Moly ResinTM
Retail Price $650.00 (Add $50.00 for black finish)
FAQ
How does the Cyclone mount to my weapon? Via muzzle threads.
Will the Cyclone work on my .300 Whisper? Yes.
What different threaded mounts are available 9/16-24TPI & 5/8-24 TPI. All barrels must have a minimum muzzle diameter of .600”.
Will the Cyclone affect the accuracy of my rifle?
Yes. The slight added weight of the Cyclone will assist in reducing barrel harmonics which can equate to a significant increase in accuracy with many host-weapons. There will be a point of impact shift between the rifle with and without the silencer, but it is a repeatable shift.
How do you clean the Cyclone?
The Cyclone can be cleaned through periodic immersion in a suitable solvent (IE. lacquer thinner).
How often do you clean the Cyclone? Every 2000-3000 rounds.
Can I shoot full auto through the Cyclone? Go ahead, you won’t hurt it.
Can I use the Cyclone on my belt fed?
Yes. Just check frequently that the silencer stays tightly threaded to the muzzle threads.
Can I shoot .223 through the Cyclone? No problem sound reduction but not as good as 30 caliber but you shouldn't need hearing protection.
Can the Cyclone be used wet?
The Cyclone can be used wet. However, when using a wet can on a gas operated weapon, the gas system will become fouled with sooty, wet material after repeated firing with water in the silencer.
Service Life? Unknown, as no one has worn one out at this time.
from
http://www.silencertests.com/
Subsonic load
unsuppressed 156.8
w/ AAC Cyclone 126.3 - reduction 30.5 Dry - and that's with 308 Subsonic
I figure the Whisper should be better as I doubt it's 156.8 unsuppressed.
Now waiting for the bizillon months for approval until my Cyclone gets here but that give time to assemble and test the upper without the can to see if it really does tighten groups like some have said and have repeatable Point of Impact shift.
:D
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Hybrid Mode
