PRE-ORDER Guidance

As you are probably aware, recent updates to ATF's eForm approval process has resulted in drastically improved turnaround times. While this is certainly a positive change, it has also had a predictable impact on suppressor inventory across the industry.

With that in mind, if you know you want a particular suppressor (or three) and it isn't in stock, your best bet is to place a "PRE-ORDER" so that we can purchase your desired suppressor the moment it becomes available from our distributors. If you wait until it shows in-stock on the website, you might miss your opportunity. PRE-ORDER helps us seek out and purchase what you are looking for. This is true whether you buy from us or someone else.

Thank you for considering Longbow Arms, we hope to earn your business.

Five by Five

$499.00

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Product Details

Brand: ECCO Machine

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

Mounting System: Industry Standard HUB compatible (1.375x24)

Materials: 17-4 H900 stainless steel

Weight: 10.8oz without mount

Length: 5"

Diameter: 1.6"

User Serviceable: No, Fully Welded

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.

Full Auto Rated: Yes

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 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.

ECCO Machine rifle suppressors are offered with no mount for those who wish to run a mounting system other than direct thread or our Helix Port (Patent pending) taper mount muzzle brakes. We feel that there is no need for our customers to be paying for an 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.

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Five by Five

Inventory and Ordering Guidance

Longbow Arms attempts to keep popular items in stock, however, if you want something not listed on the site, please reach out to us so we can discuss ordering that item. Under normal conditions, non-NFA items can be ordered and received within 5-10 business days.

For NFA items, Dealer to Dealer and Manufacturer to Dealer transfers are subject to eForm 3 approval times which are currently running 7-14 days.