Ruger Ruger-57 5.7x28mm Full-Size Pistol, 5 in Barrel, 20+1 Capacity, Model 16401 — Black Oxide, Adjustable Sights
The Ruger-57 pairs the high-velocity 5.7x28mm cartridge with a full-size, lightweight platform and a feature-rich slide. This Model 16401 example has a 5 in alloy-steel barrel, an internal-hammer delayed-blowback action, and a green fiber-optic front sight with a fully adjustable rear. It comes with two 20-round steel magazines, the factory case, and the Ruger-57 instruction manual.
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: Shows very little prior use or handling.
What’s Included
- Ruger factory hard case with label showing SKU 16401
- Ruger-57 instruction manual
- Two 20-round steel magazines with numbered witness holes
This standard Ruger-57 Model 16401 uses a delayed-blowback system with an internal hammer, delivering the distinctive 5.7x28mm performance in a controllable, full-size format. The frame is glass-filled nylon for reduced weight with durability in daily handling.
The slide wears a black oxide finish and includes front and rear cocking serrations, lightening cuts. Sights consist of a green fiber-optic front and a fully adjustable rear for precise elevation and windage tuning.
The 5 in alloy-steel barrel features a 1:9 RH twist to stabilize common 5.7x28mm loads. Safety features include an ambidextrous manual safety and a trigger safety, and the frame integrates an accessory rail for lights or lasers as desired.
Capacity is 20+1 rounds, and this pistol includes two factory 20-round steel magazines with numbered witness holes. It is manufactured in Prescott, Arizona, USA, and identified by Ruger part number 16401 with a non-threaded barrel.




