RISE Armament “Don’t Tread on Me” RA-140 Trigger Assembly – Single-Stage, Curved, 3.5 lb Pull
AR-15/AR-10 Compatible • Drop-In Trigger Module • Gadsden Flag (“Don’t Tread on Me”) Finish
Model: RA140DTOM • UPC: 850011713006
Give your AR the crisp break it deserves—while flying classic American colors. The RISE Armament Don’t Tread on Me RA-140 is a single-stage, curved drop-in trigger tuned to a clean 3.5-lb draw weight and finished with the iconic Gadsden flag motif. Built for shooters who demand short take-up, glass-rod break, and fast reset, this all-in-one module upgrades mil-spec gritty pulls into a refined, confidence-inspiring trigger press—ideal for range work, competitions, and defensive carbines.
Whether you’re running a lightweight AR-15, a precision-minded AR-10, or a duty-ready patrol rifle, the RA-140 DTOM boosts control and consistency without the guesswork of spring kits or polishing jobs.
Why Choose the RA-140 “Don’t Tread on Me”
True Single-Stage Performance
No stacking. No creep. A consistent 3.5-lb pull with a crisp break and short, positive reset for rapid follow-up shots.
Drop-In Simplicity
Arrives as a self-contained module for quick installation in most AR-pattern lowers that use standard small-pin dimensions (0.154"). No stoning or fitting required.*
Curved Trigger Shoe
Time-tested curved bow promotes natural finger placement, distributing pressure for a repeatable straight-to-the-rear press.
“Don’t Tread on Me” Finish
The Gadsden flag graphics give your build a bold, unmistakable look without sacrificing durability.
Precision Construction
Quality internals and tight tolerances enhance reliability, longevity, and shot-to-shot consistency across thousands of rounds.
*Always verify your lower receiver specs; see compatibility notes below.
Key Features & Specs
Type: Single-stage, drop-in AR trigger assembly
Pull Weight: 3.5 lb (approx.)
Trigger Shoe: Curved
Finish: “Don’t Tread on Me” Gadsden flag motif
Pins: Works with standard small-pin 0.154" AR receivers
Platform: AR-15 / AR-10 / LR-308 style lowers (mil-spec pattern)
Model: RA140DTOM
UPC: 850011713006
Note: Some billet or non-standard lowers may require anti-walk pins or specific fitment due to receiver tolerances.
Performance You’ll Notice
Faster Splits & Better Control
The short reset lets you ride the wall and send accurate follow-ups faster, improving both speed and accountability.
Cleaner Break, Tighter Groups
Eliminating gritty creep helps minimize sight movement at the shot—an immediate upgrade for precision at distance.
Consistency Under Stress
A repeatable 3.5-lb pull aids predictable press timing during movement, weak-hand strings, or positional shooting.
Ideal Use Cases
3-Gun & Practical Competition: Quick reset and clean break for speed and accuracy.
Rec / Range Carbines: Immediate feel upgrade over mil-spec triggers.
Hunting & Field: Crisp release for ethical, precise shots.
Defensive Builds: Predictable pull supports training carryover and confidence.
Installation (General Guidance)
Unload & Verify Clear. Remove mag, lock bolt open, and inspect chamber.
Remove Existing FCG. Drift out trigger/hammer pins; capture springs and disconnector.
Seat the RA-140 Module. Align the drop-in cassette with pin holes.
Install Pins. Use standard 0.154" pins or quality anti-walk/anti-rotation pins per your preference.
Function Check. Safe → Fire → Reset checks; confirm proper disconnector and safety operation before live fire.
Range Verify. Confirm POI and reliability with your duty/hunting ammo.
Gunsmith Recommended: If you’re unfamiliar with AR fire control groups, consult a qualified armorer to ensure proper safety engagement and sear coverage.
Compatibility Notes
Receivers: Designed around mil-spec AR-15/AR-10 lowers using 0.154" pins. Large-pin (.170") Colt-pattern lowers are not compatible.
Safety Selectors: Works with standard AR-15/AR-10 safeties; verify positive engagement after installation.
Bolt Carrier Groups: Compatible with standard AR carriers; ensure the hammer profile clears your BCG.
Pins: Many shooters prefer anti-walk pins for extra security in hard-use rifles (sold separately).
Maintenance & Care
Keep internals lightly lubricated at pivot/friction points.
Avoid stoning or altering engagement surfaces—this may compromise safety and void warranties.
Periodically check pin tension and selector engagement, especially after high round counts.
Frequently Asked Questions
Q: What’s the pull weight?
A: Approximately 3.5 pounds, tuned for a crisp single-stage break and fast reset.
Q: Curved vs. flat trigger?
A: This DTOM model uses a curved shoe, preferred by many for natural finger indexing and consistent leverage.
Q: Will it fit my AR-10?
A: Yes—if your AR-10/LR-308 lower follows AR small-pin (0.154") specs. Some proprietary receivers may vary—check with the manufacturer.
Q: Do I need anti-walk pins?
A: Not required, but recommended for hard-use builds or non-mil-spec lowers.
Q: Safe for defensive use?
A: The clean 3.5-lb pull is popular for competition and well-trained defensive shooters. Always confirm reliable safety engagement and conduct a thorough function test.
SEO Highlights (Quick Scan)
RISE Armament RA-140 “Don’t Tread on Me” trigger assembly
Single-stage, curved trigger with 3.5-lb pull
Drop-in AR trigger for AR-15/AR-10 (0.154" pins)
Iconic Gadsden flag finish; fast reset and crisp break
Model RA140DTOM, UPC 850011713006
The Bottom Line
The RISE Armament Don’t Tread on Me RA-140 blends premium single-stage performance with a bold, patriotic finish. Expect a clean 3.5-lb break, short reset, and straightforward drop-in install that transforms any mil-spec AR into a smoother, faster, more precise shooter—no polishing, no guesswork.
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