ECCO Machine Five By Five Suppressor

Developed specifically for short barreled 5.56mm rifles, Five By Five gets it’s name from it’s 5″ long, five baffle design. Featuring our unique progressive baffle profile, Five By Five is able to offer truly astounding suppression from such a small can, coming in right at 140 dBA at shooter’s ear on a B&K Pulse system when fired from a gas-adjusted 10.5″ AR-15 using 5.56mm ball ammunition (138.5 dBA shooter’s ear on a 16″ rifle without gas adjustment). Five By Five was carefully developed to balance back pressure with muzzle end suppression on short barreled semi automatic host weapons, and we are truly proud of the end result.

With a .315″ through bore to reduce backpressure on 5.56mm autoloading hosts, Five By Five can also accommodate .244/6mm, .257 & .264/6.5mm rounds up to and including 6.5 Creedmoor.

Five By Five is configured with 1.375-24 Bravo (H.U.B., Hybrid, Omega 300, “ASR”) threads to accept your favorite mounting system adapter

Rated for: .223 Rem/5.56x45mm NATO, all other .224″ Cal centerfire cartridges, .243 Win, .257 Roberts, 6.5 Creedmoor

Full Auto Rated: Yes
Minimum Barrel Length: None with 5.56 & similar, muzzle brake muzzle device required with barrels under 12″. 16″ for .243 Win, 6.5 Creedmoor, etc.
Length: 5″
Diameter: 1.6″
Weight (Ounces): 10.8 oz, mount adapter notwithstanding
Attachment: Modular, 1.375-24 industry standard threads
Distance from rear face to blast baffle tip: 1.7″
Suppression: Appx. 26 dB Reduction; 139.7 dBA shooter’s ear on 10.5″ 5.56mm AR
Build Materials: 17-4 H900 stainless steel
User Serviceable: No, Fully Welded

https://www.eccomachine.net/product/five-by-five/