Thompson/Center R-55 Sporter .17 Mach 2 Semi-Auto Rifle, 21 in Barrel, Laminated Stock, 5+1, USA
The Thompson/Center R-55 Sporter in .17 Mach 2 is a clean, American-made semi-automatic with a 21 in blued sporter-contour barrel and a matte black receiver. It features a brown laminated Monte Carlo stock with classic Sporter details and includes a factory 5-round steel magazine. This example has a bright, excellent bore and comes ready for glass with an installed two-piece scope base and rings.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are a few mild scuffs present from prior handling. Surfaces present well overall with no notable distractions beyond these light marks.
What’s Included
- 1x Thompson/Center factory steel detachable 5-round magazine
- Two-piece scope base with rings (installed)
This R-55 Sporter is chambered for .17 Mach 2 and is clearly roll-marked "R-55 SPORTER" and "17 MACH 2 Only" with the T/C Rochester, NH address. The action is semi-automatic, blowback, feeding from a detachable steel box magazine with a stated 5+1 capacity.
The 21 in blued steel barrel wears a sporter contour and has three plugged screw holes along the top. There are no iron sights. The receiver is matte black, drilled and tapped, and fitted with a two-piece scope base and rings to streamline mounting a scope of your choice.
The brown laminated stock is built for practical field use and consistent cheek weld, featuring a Monte Carlo cheekpiece, a schnabel forend tip, a pistol-grip profile with a grip-cap T/C medallion, and QD sling swivel studs. Length of pull measures 14.25 in.
Overall finish is a combination of blued steel and matte black, giving the rifle a clean, purposeful look. Made in the USA, this Sporter variant reflects Thompson/Center’s fit and finish, with thoughtful details that support accuracy and handling in this fast, flat .17 Mach 2 chambering.