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The factory trigger on a Ruger M77 Mark II gets the job done, but plenty of owners find themselves fighting creep and a heavier-than-ideal pull. The Rifle Basix RU-MK II swaps that out for a fully adjustable unit that lets you tune weight of pull anywhere between 14 ounces and 2.5 pounds, so you can set it light for the bench or leave it a touch firmer for hunting. It works for both right and left-hand shooters and uses your rifle's factory three-position safety, so nothing about your gun's handling changes except how good the break feels.
Rifle Basix builds these triggers with real attention to the details that matter. The internal parts are EDM cut from A2 tool steel, then heat treated and polished for consistency from the first shot to the thousandth. The result is a clean, crisp break with minimal over-travel, the kind of trigger feel that tightens up groups without you changing anything else about your setup. A clever eccentric tip safety adjustment screw is part of why this one has earned a reputation as the aftermarket trigger of choice for Ruger bolt guns.
This kit drops into current-production M77 Mark II centerfires, including the newer Hawkeye models running the LC6 trigger and the Ruger Scout. It's built for rifles with the three-position safety rather than the older tang safety design, so it's worth confirming which safety your rifle wears before ordering. No grinding, filing, or altering of parts is needed, which is a big reason folks pick it over some competing triggers.
This is a genuine do-it-yourself job. Everything ships with clear illustrated instructions, a hardware pack, and the wrench you need, and most people have it installed and adjusted inside 15 to 20 minutes once the action is out of the stock. Adjustments can be made after everything is buttoned back up, so fine-tuning your pull weight at the range is easy. For anyone who wants a noticeable accuracy gain from a single weekend upgrade, this is about as straightforward as it gets.
Yes, it's designed for current-production M77 and M77 Mark II bolt-action centerfires, including the Hawkeye models with the LC6 trigger and the Ruger Scout. It's built for rifles using the three-position safety. If your rifle has the older tang safety, that setup needs a different Rifle Basix part, so it's worth checking your safety type first.
The RU-MK II adjusts anywhere from 14 ounces up to 2.5 pounds. That range covers everything from a light target setting to a firmer weight most hunters prefer in the field. You can fine-tune it with the supplied wrench, and adjustments can even be made after the action is back in the stock.
No, this is set up as a do-it-yourself install. It comes with clear instructions, a hardware pack, and the wrench you need, and there's no grinding or filing of parts required. Most people have the action out, the trigger swapped, and everything adjusted in about 15 to 20 minutes.
It does. The RU-MK II uses your Ruger's existing three-position factory safety, so your rifle handles the same way it always has. A unique eccentric tip adjustment screw makes dialing in the safety fit clean and simple during installation.
| UPC | 891678000474 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | RU-MK II BLACK |
| Color | RUGER BOLT ACTION |
| Length | 6.9000 |
| Model | |
| Style | Adjustable |
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