**FREE** insured ground shipping on all ECCO Machine products, **INCLUDING SUPPRESSORS!**
Contact us if you want to upgrade to expedited shipping
*Service work does not qualify for free shipping*
**FREE** insured ground shipping on all ECCO Machine products, **INCLUDING SUPPRESSORS!**
Contact us if you want to upgrade to expedited shipping
*Service work does not qualify for free shipping*
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Five By Five (Rifle)




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 dB 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.  It was carefully developed to balance back pressure with muzzle end suppression on these 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.

Check it out!

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 dB on 10.5″ 5.56mm AR
Build Materials: 17-4 H900 stainless steel
User Serviceable: No, Fully Welded

Warranty: https://www.eccomachine.net/warranty/

ECCO Machine rifle suppressors are offered standard with no mount for those who wish to run a mounting system other than those we offer.  We feel that there is no need for our customers to be paying for a standard included mount that they do not need or want.  Our Direct thread mounts or taper mount adapters and brakes can, however, be packaged with a suppressor purchase at a lower price point than when purchased individually.

SOCOM Flat black is the standard finish, other finishes can be selected in the drop down and will add up to 10 business days to ship time. Natural heat treat finish or bead blasted natural heat treat finish are available as a custom order

An FFL/SOT can only transfer NFA items to residents of the state they are located in. Unless you are a resident of Colorado and will be purchasing  at our shop, you will need to provide the FFL & SOT information for  your transferring dealer before we can ship. Once we have that  information, we will file a Form 3 dealer to dealer transfer and ship  your suppressor to your local licensee as soon as the Form 3 is  approved, and they will handle your Form 4 transfer from there. The  purchase of this item does not cover any fees associated with a  Form 4  transfer.

Additional information

Weight 2 oz
Dimensions N/A
Moly Resin

Burnt Bronze, Coyote Brown, Tan FDE, SOCOM Black, Grey-Black Colt Flat, OD Green, Flat Brown

1 response to “Five By Five (Rifle)”

    Trent Rasmussen
    March 22, 2022
    Ok, besides being excited that my form4 via efile was 70days... I finally got to shoot my 5X5 and its amazing. I shoot it on my 11.5 SBR and I run a superlative arms gas block and this is nice. Very comfortable. I dont have a DB meter but to my ear I feel like this 5X5 is quieter then my Rugged Radiant762 on the same host. I switched back and forth and if I use a direct mount option it sounds the same but if I use my "rugged conversion " mount its definitely quieter. Very pleased.

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Five By Five (Rifle)
Five By Five (Rifle)
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