The Fuqua Ouch Mouse 5.7mm suppressor in black stainless is a 5.7mm suppressor from Fuqua Precision Machining, finished in black over a 17-4 stainless steel body (brand part no. OM57SSBLK). It is a small-bore can for shooters running 5.7mm firearms who want a durable stainless body in black. 17-4 stainless steel is a hardened stainless alloy known for strength and heat tolerance. It mounts with a 1/2×28 thread interface. Fuqua offers the Ouch Mouse in more than one material and color, and this listing is the black 17-4 stainless steel version.

Key Specifications

• The caliber rating is 5.7mm, the bore size for 5.7x28mm hosts.
• The body is 17-4 stainless steel, a hardened stainless alloy known for strength and heat tolerance.
• The finish color is black, the color that sets this version apart from the other finishes.
• The intended host is a 5.7x28mm pistol or carbine, a small-bore setup that pairs well with a compact can.
• The mounting thread is 1/2×28, the interface this suppressor attaches through.

Frequently Asked Questions

How does the Ouch Mouse mount? This version uses a 1/2×28 thread interface, the common pitch for small-bore barrels.

Do I need ATF approval to buy this? No. As of October 9, 2026, ATF no longer requires Form 4 approval, registration or a tax stamp for suppressors. It transfers on a Form 4473 with a background check through a Class 3 (SOT) dealer. State and local laws still apply.

Buy the Fuqua Ouch Mouse 5.7mm Suppressor, Black 17-4 Stainless Steel

As of October 9, 2026, this suppressor transfers on a Form 4473 with a background check at your Class 3 (SOT) dealer, with no Form 4 or tax stamp; state and local laws still apply. Order through Fuqua Precision Machining‘s silencers and suppressed firearms lineup and our Lubbock, Texas team will handle the transfer.