Description
The factory trigger on a Ruger 77-series rimfire is one of the first things folks want to change, and for good reason. This black-finish Rifle Basix RU-R is built to replace it and turn a mushy, overweight pull into something crisp and predictable. It fits the current Ruger bolt action rimfires including the 77/17 and 77/22, plus the 77/44 and .22 Hornet, and it's set up for both right and left hand operation. One thing worth noting: it does not fit the Ruger American Rifle.
What the RU-R Does on the Bench and in the Field
Pull weight adjusts across a wide range, from roughly 14 ounces on the light end up to about 2.5 pounds. That gives target and small game folks room to dial in a light, clean break while still keeping things sensible for a hunting rifle. The design cuts out the take-up and over-travel that plague a lot of stock triggers, so you get a shorter, cleaner release that helps you break the shot exactly when you want to.
How the Rifle Basix Trigger Is Built
These are made 100% in the USA. The housing is CNC machined from T6 6061 billet aluminum and black anodized for a factory look, while the internal levers are investment cast from A-2 tool steel, machined, and heat treated for good wear life. The levers get an electroless nickel plating for smooth operation. There's also an eccentric-tip safety adjustment screw designed to work with the factory tolerances on Ruger's three-position safety, which is a nice touch for keeping everything functioning the way it should.
Installing the RU-R at Home
This is a genuine drop-in trigger, so most people handle the swap at the kitchen table in under half an hour without a gunsmith. It ships complete with a hardware pack, wrench, and a detailed instruction sheet covering pre-adjustment settings, safety spacing, and pull weights. Take your time setting sear engagement and always confirm the safety works and the firing pin holds before heading out. Rifle Basix backs these with a lifetime warranty as long as the trigger hasn't been modified.
Key Specifications
- Manufacturer: Rifle Basix
- Manufacturer Part Number: RU-R BLACK
- UPC: 891678000481
- Model Compatibility: Ruger 77/17, 77/22, 77/44, .22 Hornet
- Color / Finish: Black Anodized
- Style: Fully Adjustable Drop-In
- Pull Weight Range: 14 oz to 2.5 lbs
- Length: 3.75 in
- Housing Material: T6 6061 Billet Aluminum
- Lever Material: A-2 Tool Steel, Heat Treated, Nickel Plated
- Hand Operation: Right or Left Hand
- Country of Origin: Made in USA
- Warranty: Lifetime (unmodified)
What’s Included
- RU-R replacement trigger (black)
- Hardware pack
- Adjustment wrench
- Instruction sheet
Frequently Asked Questions
Which Ruger rifles does the RU-R trigger fit?
It's built for the current Ruger bolt action rimfires, including the 77/17 and 77/22, and it also fits the 77/44 and .22 Hornet chamberings. It works for both right and left hand operation. Keep in mind it does not fit the Ruger American Rifle.
How light can I set the Rifle Basix RU-R trigger?
The pull weight is adjustable from about 14 ounces on the light end up to roughly 2.5 pounds. That range covers everything from a crisp target setting to a firmer weight for a hunting rig. Whatever you land on, always check sear engagement and safety function before shooting.
Do I need a gunsmith to install the RU-R?
No, this is a true drop-in trigger that most people install themselves in well under an hour. It comes with the hardware, a wrench, and a detailed instruction sheet that walks you through pre-adjustment settings and safety spacing. Just take your time and verify the safety and firing pin hold before you head to the range.
How is the RU-R trigger made?
It's manufactured entirely in the USA with a CNC-machined T6 6061 billet aluminum housing that's black anodized for a factory appearance. The internal levers are investment cast from A-2 tool steel, heat treated for durability, and nickel plated for smooth movement. Rifle Basix also backs it with a lifetime warranty as long as it hasn't been modified.




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