Ruger-57 5.7x28mm Full-Size Pistol, 4.94 in Barrel, 20+1 Capacity, 2022 Production, Black – MPN 16401
This Ruger-57 is a 2022-production, full-size 5.7x28mm pistol configured with a 4.94 in alloy-steel barrel, 20+1 capacity, and fiber-optic/fully adjustable sights. It comes in excellent condition with three 20-round magazines and the Ruger factory hard case bearing the matching SKU label for MPN 16401. Note: Ruger case labels commonly round barrel length to 5"; the official factory specification for this model is 4.94 in.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This example shows minimal handling. The bore is bright and clean with a mirror-like appearance.
What’s Included
- Ruger factory hard case with matching serialized label (SKU 16401)
- Three 20-round steel magazines with witness holes and polymer baseplates
The Ruger-57 uses a delayed-blowback, hammer-fired action paired with Ruger’s Secure Action fire-control and a flat-faced trigger with an integral safety blade. The internal hammer system delivers consistent ignition while keeping external controls streamlined.
The 4.94 in alloy-steel barrel features a nitride finish and a 1:9 RH twist optimized for the 5.7x28mm cartridge. A visual chamber inspection port provides a quick status check.
The slide wears a black oxide finish with front and rear cocking serrations, a top lightening window, and a chamber inspection port. Sighting is fast and precise thanks to a green fiber-optic front sight and a fully adjustable rear.
The glass-filled nylon frame keeps weight to 24.5 oz unloaded and incorporates an ambidextrous manual thumb safety and an integrated rail. Capacity is 20+1 rounds, and key dimensions include an overall length of 8.65 in and a slide width of 1.20 in. Manufactured in the USA, this pistol is cataloged as model number 16401.

