Factory turnkey .338 ARC bolt gun. 16.1-inch threaded bull barrel, 5/8x24 muzzle, AR-pattern 5-round magazine, and a Picatinny rail receiver; the no-build route into Hornady's suppressed subsonic cartridge.
The Ruger American Gen II Patrol model 56911 is a factory .338 ARC bolt-action host. Ruger's specification lists a 16.1-inch 1:8 threaded barrel, 5/8x24 muzzle threads, a 5-round AR-style magazine, and a Picatinny rail. That magazine claim belongs to this Ruger model; it does not establish a universal .338 ARC magazine pattern.
The 1:8 twist matches the optional twist on the current SAAMI drawing. The 5/8x24 muzzle accepts matching devices, but thread pitch does not establish suppressor bore clearance or a cartridge rating. Verify the exact suppressor, mount, barrel restriction, and firing schedule with the suppressor maker.
The Gen II action includes Ruger's Marksman Adjustable trigger, a three-position safety, and an adjustable length of pull. This factory host removes the AR barrel, bolt, carrier, lower, and magazine-matching steps from the build decision.
0-10 Scale Across 8 Axes

Vortex
Vortex Strike Eagle 3-18x44 FFP
2 shared compatibility tags

Vortex
Vortex Strike Eagle 5-25x56 FFP
2 shared compatibility tags

Nightforce
Nightforce SHV 4-14x50 F1
2 shared compatibility tags

Vortex
Vortex Razor HD LHT 4.5-22x50 FFP
2 shared compatibility tags

German Precision Optics
GPO GPOTAC 8X 1-8x24i

Vector Optics
Vector Optics Continental 2-12x44 RAR FFP

Vector Optics
Vector Optics Continental 1-10x28 ED RAR FFP

Vector Optics
Vector Optics Paragon 3x18 Prism

Vector Optics
Vector Optics Paragon 1x18 Mini Prism

Vector Optics
Vector Optics Continental 1-6x24i Fiber SFP
Add optics, lights, and accessories to build your perfect Ruger American Gen II Patrol 338 ARC.