White Sound Defense FOSSA
I keep getting calls and emails asking me when we'll get the 5.56 FOSSAs back in stock. Bottom line is, I don't know. It's a great product and I get it. You have one and want more, or you've heard about them and want to try one. Sorry I can't be more specific on timelines.
What I do know is White Sound Defense ran into a supply issue with the FOSSAs several months ago. They are unable to provide even a rough timeframe as to when they would get more. The last time I spoke with them, they mentioned possibly incorporating some desired design changes into the original FOSSA in which case there will be no more original FOSSAs ever, but hopefully at some point a redesigned version.
The best thing to do is use the "Notify Me When Available" option on the product page so you will be notified when product quantities get updated.
Note as of now, the 7.62 FOSSA is still available.
FOSSA - Multifunction Muzzle Device - Features nominal flash and mitigated dust signature, fully compensated to reduce muzzle rise and reduce rearward recoil with no increase in concussion or noise level. Made from 17-4PH stainless steel. Surface is coated with either black oxide, or for hard use applications, a titanium aluminum nitride (TiAlN) coating. While titanium aluminum nitride might be over-kill for some applications, the finish is extremely durable and provides a low friction surface to minimize adhesion of carbon and copper.
Note: these comps do not come with a crush washer, but they are available separately on our website for your convenience. We do suggest the White Sound shims instead of crush washers for a cleaner install. We have those available separately also.
556 FOSSA has 1/2 x 28 threads and 7.62 FOSSA has 5/8 x 24 threads. 5.56 FOSSA price is $99 for black oxide and $109 for the TiAlNi model. 7.62 black oxide FOSSA is $119.95.
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