AR .308 Adaptable Trigger — Premium Drop-In for AR-10 / LR-308 Platforms
Model: ART-TBB-25-NNC • UPC: 885768002172
Bring match-grade precision to your .308 AR with the AR .308 Adaptable Trigger (ART-TBB-25-NNC)—a refined, drop-in assembly engineered for a crisp break, short reset, and consistent performance from the bench to the backcountry. Built for AR-10/LR-308 pattern rifles, this unit modernizes your fire control without gunsmithing, elevating accuracy, control, and shooter confidence in a single upgrade.
Why This Trigger Stands Out
True Drop-In Convenience: Self-contained cassette design installs quickly in most AR-10/LR-308 lowers with standard 0.154" trigger/hammer pin holes.
Clean, Predictable Break: Precision-machined sear geometry minimizes creep and overtravel so your sight picture stays steady through the shot.
Short, Tactile Reset: Positive reset cues accelerate split times and follow-up shots while improving rhythm on steel or game.
User-Tunable Pull: Adapt the trigger to your role—lighter for supported precision work or slightly heavier for duty or field carry.*
Durable, All-Weather Build: Heat-treated internals and protective exterior finish help resist corrosion, fouling, and wear over high round counts.
AR-10/LR-308 Compatible: Optimized for .308-based AR platforms and other 7.62 NATO derivatives that use the AR-10/LR-308 pattern.
*Always confirm safe operation after any adjustment before live use.
Key Features & Specs
Platform: AR-10 / LR-308 (.308 Winchester / 7.62×51 NATO and family)
Type: Drop-in, cassette-style fire-control group
Pull Weight: Adjustable (bench-tune to your preference; set screw interface)
Reset: Short, positive, and audible/tactile
Pins: Fits standard 0.154" trigger pins (anti-walk pins recommended)
Coatings/Materials: Hardened steel internals with protective exterior finish for longevity
Safety: Works with standard AR selectors; maintains safe sear engagement when properly installed and adjusted
Model: ART-TBB-25-NNC
UPC: 885768002172
Note: Designed for AR-10/LR-308 pattern lowers. Receiver geometry varies by manufacturer—always verify hole size and compatibility.
Real-World Benefits
Shrink Your Groups: A crisp break helps you press straight to the rear without disturbing the reticle, especially on higher-magnification optics.
Faster Follow-Ups: A short, consistent reset supports quicker cadence on steel or when engaging multiple targets.
Confidence Under Stress: Predictable feel and reduced overtravel mean fewer surprises and better shot calling.
Versatility Built-In: The adjustable pull weight lets one trigger serve multiple roles—precision, practical, or hunting.
Ideal Use Cases
Precision & Practical Rifle: From PRS-style drills to prone zeroing sessions, get repeatable performance shot after shot.
Hunting: Smooth press and clean break support ethical, well-placed shots at extended distances.
Training Days: Consistency and durability for high-round-count practice without trigger fade.
Installation Overview
Unload & Clear the rifle.
Remove existing trigger/hammer and pins per manufacturer instructions.
Seat the drop-in cassette; align holes with receiver.
Insert Pins (use included/aftermarket anti-walk pins if desired).
Adjust Pull to your preference; apply thread-locker per product guidance.
Function Check: Verify safety engagement, reset, and reliable hammer movement before live fire.
Range Verify with your duty/hunting ammo to confirm reliable ignition and safe operation.
Compatibility Notes
Receivers: Intended for AR-10/LR-308 pattern lowers using 0.154" pins. Not for Colt-style large-pin lowers.
Calibers: Optimized for .308/7.62 NATO; also suitable for many AR-10-pattern derivatives (6.5 Creedmoor, .243 Win, etc.).
Bolt & Carrier: Works with most standard AR-10 BCGs; ensure the rifle is in proper mechanical condition.
Pistol-Caliber Carbines: Not intended for blowback PCC systems unless specifically noted by the manufacturer.
Care & Maintenance
Keep the fire-control pocket free of debris.
Avoid heavy oils that can attract fouling—use a light, quality lubricant on bearing surfaces.
Re-confirm torque and anti-walk screws after the first range session.
Periodically re-check pull weight and safety engagement if you adjust settings.
SEO-Quick Hits (Copy & Paste)
AR .308 Adaptable Trigger — drop-in AR-10/LR-308 trigger upgrade
Adjustable pull weight, crisp break, short reset
Works with standard 0.154" pins; anti-walk recommended
Model ART-TBB-25-NNC, UPC 885768002172
Ideal for precision shooting, hunting, and training
Frequently Asked Questions
Q: Will this fit my AR-15 (.223/5.56)?
A: This model is designed for AR-10/LR-308 lowers. Many AR-15 triggers share dimensions, but you should select a trigger made specifically for AR-15 platforms if that’s your rifle.
Q: Do I need a gunsmith to install it?
A: Most users can install a drop-in cassette with basic tools and care. If you’re unfamiliar with AR fire-control groups, consult a qualified gunsmith.
Q: What pull weight should I choose?
A: For precision/bench work, many shooters prefer a lighter setting; for duty or hunting, a slightly heavier setting can enhance safety margins. Always verify safe operation after adjustments.
Q: Can I dry fire during setup?
A: Dry fire for function checks is common—use a quality snap cap if desired and follow manufacturer guidance.
Safety & Compliance
Always follow the four rules of firearm safety. Ensure the rifle is unloaded during installation. Confirm safe sear engagement, proper reset, and reliable ignition before any live fire. Comply with all federal, state, and local regulations concerning firearm parts and modifications.
Upgrade your AR-10/LR-308 with the AR .308 Adaptable Trigger (ART-TBB-25-NNC) to experience a cleaner break, a shorter reset, and the kind of consistency that turns capable rifles into precision tools.
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