Ruger American Rifle Generation II .243 Winchester
Model: 46904
Ruger American Rifle Generation II .243 Winchester
Model: 46904
Full Specifications
About This Firearm
Ruger rolled out the American Rifle Generation II on Christmas Eve 2023 as a top-to-bottom refresh of one of the best-selling budget bolt guns in the U.S. The Gen II keeps the three-lug bolt with a 70° throw and the Power Bedding integral block from the original, then layers on the upgrades owners had been asking aftermarket shops to do for a decade: a cold hammer-forged 20" fluted barrel, a 5/8-24 threaded muzzle with a factory radial port brake, a one-piece Picatinny rail, and a Cerakote finish across the metalwork. The Marksman Adjustable trigger carries over with a user-set 3-5 lb range, but it now sits in a stock built around it rather than bolted into a rifle that needed the rail and the brake added at home.
The headline ergonomics change is the Gen II American polymer stock in Gray Splatter. It uses spacers to dial length-of-pull from 12" up to 13.75", which is the same adjustment range the Mossberg Patriot Super Bantam offers but on a full-size rifle rather than a youth platform. The grip angle is steeper than the Gen 1's, the comb is removable for scope-height tuning, and the forend is wider for bag work. Total weight comes in at 6.3 lb, which is right where the original sat — Ruger added features without padding the scale.
Against the Ruger American Rifle Gen 1, the Gen II is the harder sell only on sticker — the Gen 1 still ships as a no-frills sporter with a smooth barrel, no rail, and no brake. Once you add a Picatinny rail and a thread adapter to the Gen 1, the spend gap closes fast, and the Gen II's AI-style detachable magazine and replaceable bolt handle are not back-fittable. Step up another tier to the Tikka T3x Lite and you trade the rail and brake for the smoothest factory bolt cycle in the price class — Tikka's Finnish action is the benchmark reviewers cite when grading every other budget-to-mid bolt gun.
Buy the Gen II if you want a suppressor-ready, optic-ready .243 hunting rifle that arrives finished. Stick with the Gen 1 if your budget is tight and you'll never thread a can or mount a Pic-rail accessory. The Gen II is not trying to out-smooth the Tikka — it's trying to be the rifle that needs nothing added before opening day.
Best For
Strengths & Limitations
- Threaded 5/8-24 muzzle with factory radial brake — suppressor- and muzzle-device ready without a trip to the gunsmith, which is the single biggest functional gap on the Gen 1
- One-piece Picatinny rail comes installed from the factory; the Gen 1 ships with a proprietary Ruger scope-base footprint that locks you into integral mounts or requires a separate rail purchase
- LOP adjusts 12" to 13.75" via stock spacers — same range as a Mossberg Super Bantam youth rifle on a non-youth action, so a single rifle covers a 10-year-old through a tall adult
- Marksman Adjustable trigger is user-tunable down to 3 lb without a trigger swap; owners and reviewers consistently rate it as the best factory trigger in the sub-Tikka price tier
- 3-round AI-style magazine is the standard capacity — a 10-round mag is sold separately and not all Ruger American Gen 1 magazines drop into the Gen II without checking generation compatibility first
- The bolt cycle is functional, not smooth — owners regularly describe it as "gritty until broken in" and the Tikka T3x Lite is the benchmark to beat at this end of the market
- 20" barrel is shorter than most .243 long-range platforms, costing roughly 100 fps versus a 24" tube and limiting effective reach with the heaviest match bullets the 1:9 twist could otherwise spin
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Frequently Asked Questions
What's actually different between the Gen II and the original Ruger American?
The Gen II adds a cold hammer-forged fluted barrel, a 5/8-24 threaded muzzle with a factory radial port brake, a one-piece Picatinny scope rail, a replaceable bolt handle, and an adjustable-LOP splatter stock with a steeper grip and removable comb — none of which were on the Gen 1. The action, Power Bedding, three-lug bolt with 70° throw, and Marksman Adjustable trigger carry over largely unchanged. If you'd planned to add a rail, thread the barrel, and swap the stock on a Gen 1, the Gen II arrives with all three done.
Do I need to remove the muzzle brake to mount a suppressor?
Yes — the factory radial brake threads off the 5/8-24 muzzle and a direct-thread .30-caliber-rated suppressor screws on in its place. No thread adapter is needed because 5/8-24 is the standard pitch for .30-cal cans (a .243 bore fits inside a .30-cal can without issue). Keep the brake for unsuppressed range work; it cuts perceived recoil noticeably on the lightweight 6.3 lb chassis.
How does the LOP spacer system actually work, and what's the adjustment range?
The stock ships set at 13.75" LOP with three removable spacers between the recoil pad and the stock body. Pull spacers out (or add them, if Ruger ships fewer than the maximum stack in your variant) to shorten LOP in roughly 0.5" increments down to 12". This is the same minimum LOP as the Mossberg Patriot Super Bantam, which makes the Gen II a viable youth-to-adult progression rifle on a single chassis — uncommon at this price point.
