*PLEASE CODE TIMNEY5 WITH THIS ITEM!*
Timney Triggers Ruger American Gen II Centerfire Adjustable Curved Trigger Black 642C UPC 081950642823
Product Description
The Timney Triggers® Ruger American® Gen II Replacement Trigger (SKU: 642C / UPC: 081950642823) is purpose-engineered to eliminate factory trigger creep, uneven stacking, and excessive overtravel in Ruger's second-generation centerfire bolt-action rifles. Hand-assembled and calibrated at the factory for an exceptionally crisp 3.0-pound break, this drop-in single-stage fire control group delivers a true "glass-rod" release that dramatically minimizes shooter-induced sight deflection during long-range shot execution, precision benchrest testing, and big-game hunting.
Constructed around a rigid, CNC-machined 6061-T6 billet aluminum housing finished in MIL-A-8625 Type III hardcoat anodize, the internal architecture features critical sears precision wire-EDM cut from high-grade A2 tool steel. Heat-treated for ultimate surface hardness and finished with a lubricious friction-reducing coating, the internal contact geometry resists micro-galling and harsh environmental fouling. This metallurgical standard ensures zero dimensional degradation across thousands of cycles, maintaining crisp sear geometry in freezing mountain hunts, dusty range environments, and high-volume tactical strings.
Engineered for seamless drop-in fitment, the 642C integrates directly with Ruger's factory three-position safety components, fully preserving the firearm's mechanical ability to lock the bolt on safe or cycle cartridges safely while blocked. Featuring an externally adjustable pull weight range from 2.0 to 4.0 pounds and a classic curved bow that centers finger pad placement, this trigger transforms standard production rifles into match-grade precision field instruments without requiring stock inletting or receiver gunsmithing.
*Armorer Bench Notes & Real-World Staging Guidance:*
Fitment Matrix: Compatible exclusively with all right-hand Ruger American® Gen II Centerfire rifles. Reuses factory three-position tang safety linkages. CRITICAL: Will NOT fit original Ruger American Gen I rifles (which feature the older two-position safety mechanism and require Timney 641C), Ruger American Rimfire models, or left-handed actions. When reinstalling action screws into factory synthetic or composite stocks, torque to manufacturer specification (typically 30–35 in-lbs; up to 60–65 in-lbs if mounted in aluminum bedding blocks or aftermarket chassis).
- Ensure the host firearm is completely clear, magazine removed, and chamber visually and physically verified empty.
- Separate the barreled action from the rifle stock by removing the front and rear action screws, and drive out the factory trigger retention pins using a non-marring brass punch.
- Seat the self-contained Timney 642C cassette into the receiver cavity, ensuring the factory three-position safety connector link seats accurately into the Timney safety cam pathway, and reinstall the receiver cross pins.
- Verify pull weight using an armorer's trigger pull gauge; if tuning the pull weight within the 2.0 to 4.0 lb envelope, turn the set screw with the appropriate hex key and ensure sear engagement remains positive.
- Perform a full mechanical 5-point function check: verify trigger is dead and bolt locked in Position 1, verify trigger is dead and bolt operates smoothly in Position 2, verify crisp ignition in Position 3, and perform a rigorous rubber mallet drop/bounce check on the buttpad to confirm absolute sear retention prior to live firing.
Key Features
- Crisp Single-Stage Break: Delivers an instantaneous, zero-creep trigger break factory calibrated to 3.0 lbs to maximize downrange mechanical accuracy.
- Externally Tunable Pull Weight: User-adjustable from 2.0 to 4.0 lbs using a fine-thread hex adjustment screw without requiring disassembly from the receiver.
- 6061-T6 Hardcoat Anodized Housing: CNC-machined billet aluminum cassette protects sensitive engagement surfaces from debris, sand, and field contaminants.
- Wire-EDM Cut A2 Tool Steel Sear: Cryogenically heat-treated tool steel components with micro-polished contact surfaces eliminate creep and withstand heavy operational abuse.
- Three-Position Safety Integration: Retains full factory 3-position safety function, allowing safe loading and chamber clearing with the firing mechanism completely blocked.
- Ergonomic Curved Trigger Shoe: Traditional trigger radius ensures uniform finger pad placement and consistent mechanical leverage shot after shot.
Product Specifications
- Brand: Timney Triggers®
- Model/Series: Ruger American® Gen II Centerfire Replacement Trigger (Curved)
- MPN / SKU: 642C / 642C
- UPC: 081950642823
- Trigger Type: Single-Stage
- Trigger Profile: Traditional Curved Bow
- Pull Weight Range: 2.0 lbs - 4.0 lbs (Factory calibrated at 3.0 lbs)
- Housing Construction: CNC-Machined 6061-T6 Billet Aluminum
- Housing Finish: MIL-A-8625 Type III Class 2 Hardcoat Anodized Black
- Internal Components: Wire-EDM Machined Heat-Treated A2 Tool Steel
- Safety Mechanism: Interlocks with Ruger Gen II Factory 3-Position Tang Safety
- Platform Compatibility: Ruger American® Gen II Centerfire Rifles (Right-Hand)
- Country of Origin: United States
