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RISE Armament RA-140 AR-15/AR-10 Flat Super Sport Drop-in Trigger Single Stage
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$139.99
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SKU: WX2*0716831
Overview
Built for AR shooters who want a cleaner, lighter trigger feel without a complicated install, this drop-in unit is aimed at straightforward upgrade work on mil-spec AR-style platforms. Its self-contained design is intended to simplify setup, while the flat trigger blade is designed to give the shooter more control and leverage during use. The non-adjustable 3.5-pound pull keeps the trigger consistent, and the product notes that KNS Anti-Rotate Pins are recommended, though not required. It is a practical choice for hunters and rifle owners looking to improve the trigger interface on compatible rifles without gunsmithing.
Why Hunters Choose the Rise Armament
True Drop-in
No gunsmithing required
Single-stage, Non-adjustable
3.5-pound trigger pull
Flat Trigger
Blade offers enhanced control and
Fits Mil-spec
AR-style platforms in multiple calibers
Self-contained Design
Simplifies installation and setup
Key Features
- Self-contained drop-in trigger for AR-15 and AR-10 mil-spec platforms.
- Single-stage trigger with a non-adjustable 3.5-pound pull.
- Flat trigger blade offers enhanced control and better leverage.
- True drop-in installation requires no gunsmithing or fine-tuning.
- Fits mil-spec AR-style platforms in calibers including .223/5.56, .308, 6.5, and 9mm.
- Includes anti-walk pins; KNS Anti-Rotate Pins are recommended but not required.
Best Used For
- AR-15 or AR-10 owners wanting a simple, drop-in trigger upgrade without gunsmithing
- Hunters using mil-spec AR-style rifles who prefer a lighter, non-adjustable 3.5-pound pull
- Shooters seeking a flat trigger blade for improved control and leverage during trigger press
- Owners of compatible .223/5.56, .308, 6.5, or 9mm AR-style platforms
- Users who want included anti-walk pins and a self-contained cassette-style installation
Specifications
| Adjustable | No |
|---|---|
| Caliber Compatibility | .223/5.56, .308, 6.5, 9mm, and more |
| Compatibility | AR-15/AR-10 AR-style platforms built to mil-spec dimensions |
| Fine Tuning Required | No |
| Gunsmithing Required | No |
| Includes Anti Walk Pins | Yes |
| Installation Type | Drop-in |
| Manufacturing Standard | AS9100 aerospace requirements |
| Material | CNC machined from high-grade, heat-treated tool steel; black 8625 hardcoat anodized aluminum cassette |
| Recommended Anti Rotate Pins | KNS Anti-Rotate Pins |
| Self Contained Design | Yes |
| Set Screw Tampered With | Should not be tampered with |
| Trigger Blade Style | Flat |
| Trigger Pull Weight | 3.5 lb |
| Trigger Type | Single Stage |
| Warranty Void If Modified | Yes |
Pros
- True drop-in installation with no gunsmithing required
- Single-stage, non-adjustable 3.5-pound trigger pull
- Flat trigger blade offers enhanced control and better leverage
- Fits mil-spec AR-style platforms in multiple calibers
- Self-contained design simplifies installation and setup
- Includes anti-walk pins for added pin retention
Considerations & Trade-offs
- The trigger is non-adjustable, so the 3.5-lb. pull is fixed rather than tunable to individual preference.
- KNS Anti-Rotate Pins are recommended, which may add an extra purchase if you want added pin retention.
- It fits AR-style platforms built to mil-spec dimensions, so compatibility depends on the rifle meeting those specifications.
- The set screw should not be tampered with; any modification voids the warranty.
Suggested Comparisons
- AR-15/AR-10 drop-in triggers
- Single-stage triggers
- Flat trigger upgrades
- Mil-spec AR platform trigger assemblies
Suggested Accessories
- Trigger pins
- Gun vise
- Armorer's wrench
- AR-15 lower parts kit
Frequently Asked Questions
What rifles will the RA-140 fit?
It fits AR-style platforms built to mil-spec dimensions. The product data lists calibers including .223/5.56, .308, 6.5, 9mm, and more.
Is this a drop-in trigger that requires gunsmithing?
No. The RA-140 is described as a true drop-in, self-contained trigger with no gunsmithing required.
Is the trigger pull adjustable?
No. The product states it is a non-adjustable single-stage trigger with a 3.5-lb. pull.
Are anti-rotate or anti-walk pins needed?
KNS Anti-Rotate Pins are recommended but not required. The product also says it includes anti-walk pins.
What materials or construction details are provided?
The product data says the trigger is CNC machined from high-grade, heat-treated tool steel and uses a black 8625 hardcoat anodized aluminum cassette.