Thompson/Center Dimension Series A .204 Ruger Bolt-Action Rifle, 22 in 5R Barrel, Blued, 5+1
This Thompson/Center Dimension Series A in .204 Ruger stands out for its modular LOC switch-barrel system and Series A caliber family, pairing a 22-inch 5R-rifled sporter barrel with a lightweight aluminum receiver. It carries T/C’s 1-MOA factory accuracy guarantee and comes with installed two-piece scope bases, making it a capable, accurate, and configurable platform in a discontinued line introduced in 2012.
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: There are a few very minor, superficial scratches and blemishes.
What’s Included
- 1x 5-round detachable magazine (Dimension Series A marked "A" and "204-223")
- Two-piece scope bases (installed)
- Documents
- Tools
- Ammunition: 5 rounds
The Dimension platform uses a modular LOC switch-barrel system organized by lettered caliber families; Series A covers .204 Ruger and .223 Remington. A knurled torque collar/barrel nut secures the barrel to the aluminum receiver cylinder, and the Series A detachable magazine is marked for the family and caliber.
The 22-inch steel sporter-contour barrel features 5R rifling and an unthreaded muzzle. Thompson/Center rates the Dimension line with a factory 1-MOA (3-shot/100 yd) accuracy guarantee with premium ammunition, aligning with the precision-focused barrel design.
A three-lug bolt with approximately a 60-degree lift provides smooth cycling and a compact bolt throw. The bolt locks into the barrel extension, contributing to consistent headspacing and repeatable accuracy. Capacity is 5+1 with the included detachable box magazine.
The black polymer stock includes a Monte Carlo comb, adjustable length of pull, an integral trigger guard, elastomer grip and forend inserts, a rubber recoil pad, and a front sling-swivel stud. Two-piece scope bases are installed, and the rifle is configured without sights. The rifle wears a blued finish and is made in the United States.