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Questions & Answers
Does an ambidextrous safety work with this trigger I had to remove mine in order for the trigger to operate. Expert Answer

It should work with any AR15 ambidextrous safety.

by Jonathan D., Gear Expert, September 3, 2019
I just purchased the RA-240 based on an experience I have had with the RA-140 Super Sporting Trigger. Does this drop-in have set screws ? Expert Answer

Please email us at techsales@opticsplanet.com so we can further assist you with your question.

by Patrick, Gear Expert, November 2, 2021
Customer Reviews
Expert Review
Hello Big Blue by Matt S., Gear Expert, May 7, 2018
This is my second Rise Armament trigger. I really like the quality they offer while keeping prices reasonable. The blue finish on the housing is really nice, almost wish I had a skeletonized receiver to show it off more. As for the function, this t...
Read More...
49/50 found this helpful
Helpful Positive Review
Tighten screws before use by Stan, Verified Owner, July 4, 2025
When I first installed this trigger it would constantly light strike and occasionally fire on release. After some research on these triggers I found that there are two screws you need to tighten down to keep this from happening. After it’s installed ...
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3/3 found this helpful
Helpful Positive Review
Pros: Trigger is crisp, light, and has a strong wall and sharp reset. Great upgrade for the price. I went with the flat one and love it. Cons: You need to tighten two tension screws or the trigger does not reset correctly and will fire on reset. T...
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It tries its ‘best’ by Jae, Verified Owner, April 19, 2025
We purchased this trigger for our 300blk, but we had trouble with softstrikes. This was disappointing because the trigger itself was so nice and easy to install, and was really smooth in our test runs. One of the pins kept trying to escape due to the...
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2/2 found this helpful
Helpful Positive Review
I even emailed rise regarding the trigger not resetting properly and causing light primer stikes. Finally found a review explaining you need to tighten the two tension screws with long hex key. Did it and now the trigger works perfectly.... THERE AR...
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Great product by Levi, Verified Owner, January 19, 2025
I have this in 6 of my AR builds and the are great 4 of them are in 55.6 and two are in 9mm
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Read All 347 Reviews

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Product Info for OpticsPlanet Exclusive RISE Armament RA-240 Enhanced Rifle Trigger

If you're planning some AR modifications, the trigger is almost always the first change, so gear up with OpticsPlanet and RISE Armament with the exclusive RA-240 drop-in trigger. Working together, this single-stage trigger brings together Rise Armament's high quality designs and OP's unique style. The RA-240 is available in two colors and configurations. You'll find it in blue and black with a curved trigger shape, or silver and blue with a straight trigger shape.image

These AR Triggers are designed with an extremely light 3.5-pound pull weight, crisp break, and fast reset. The RA-240 design was constructed from high-grade and heat treated tool steel and aluminum. For assembly, Rise Armament adheres to AS9100 aerospace requirements, which are much stricter than gun standards. Plus, the drop-in design is easy to install and requires no fine-tuning. It's also compatible with both .223- and .308-rifle designs. Upgrade with the Rise Armament RA-240 drop-in trigger, which you'll only find on OpticsPlanet!

WARNING: California`s Proposition 65

Specifications for OpticsPlanet Exclusive RISE Armament RA-240 Enhanced Rifle Trigger:

Manufacturer: RISE Armament
Finish: Anodized
Fabric/Material: High-Grade Heat-Treated Tool Steel/Aluminum
Trigger Pull Weight: 3.5 lb
Trigger Pin Size: 0.15625 in
Gun Make: AR Platform
Gun Model: AR-15
Condition: New
Caliber: 5.56x45mm NATO, .308 Winchester, .223 Remington
Country of Origin: USA

Features of OpticsPlanet Exclusive RISE Armament RA-240 Enhanced Rifle Trigger:

  • Available exclusively from OpticsPlanet
  • Clean break trigger with a short reset.
  • Single-stage trigger system with drop safety feature.
  • Single-stage trigger system.
  • Light 3.5-lb. pull weight.
  • Comfortable, semi-curved trigger for enhanced control.
  • Manufactured and assembled according to strict AS9100 aerospace requirements, which are more stringent than standard gun manufacturing requirements.
  • CNC machined from high-grade, heat-treated tool steel and aluminum.
  • Bright blue 8625 hard coat anodized aluminum cassette.
  • Fits most .308 and.223 AR-style platforms.
  • Self-contained design makes it easy and quick to install with no fine-tuning needed.
  • OpticsPlanet Exclusives

Package Contents:

  • OpticsPlanet Exclusive RISE Armament RA-240 Enhanced Rifle Trigger
  • Anti-walk Pins

OpticsPlanet Exclusive RISE Armament RA-240 Enhanced Rifle Trigger Orderable Models

List of Orderable Models

  • OpticsPlanet Exclusive RISE Armament RA-240 Enhanced Rifle Trigger, Straight, 3.5lb Pull, Blue/Silver, RA-242-ERT , MPN: RA-242-ERT , UPC: 853742008861 , Code: 2AL-ART-ERTRG-RA-242-ERT
  • OpticsPlanet Exclusive RISE Armament RA-240 Enhanced Rifle Trigger, Curved, 3.5lb Pull, Blue/Black, RA-240-ERT , MPN: RA-240-ERT , UPC: 853742008458 , Code: 2AL-ART-ERTRG-RA-240-ERT

OpticsPlanet Exclusive RISE Armament RA-240 Enhanced Rifle Trigger Unavailable & Discontinued Models

List of Unorderable Models

  • USED OpticsPlanet Exclusive RISE Armament RA-240 Enhanced Rifle Trigger, Straight, 3.5lb Pull, Blue/Silver, RA-242-ERT, EDEMO10, Used, Condition Fair , MPN: RA-242-ERT-EDEMO10 , Code: 2AL-ART-ERTRG-RA-242-ERT-EDEMO10
  • USED OpticsPlanet Exclusive RISE Armament RA-240 Enhanced Rifle Trigger, Curved, 3.5lb Pull, Blue/Black, RA-240-ERT, EDEMO6, Condition Fair, Used , MPN: RA-240-ERT-EDEMO6 , Code: 2AL-ART-ERTRG-RA-240-ERT-EDEMO-US-D
  • USED OpticsPlanet Exclusive RISE Armament RA-240 Enhanced Rifle Trigger, Curved, 3.5lb Pull, Blue/Black, RA-240-ERT, EDEMO4, Used, Condition Fair , MPN: RA-240-ERT-EDEMO4 , Code: 2AL-ART-ERTRG-RA-240-ERT-EDEMO4
  • USED OpticsPlanet Exclusive RISE Armament RA-240 Enhanced Rifle Trigger, Straight, 3.5lb Pull, Blue/Silver, RA-242-ERT, EDEMO7, Condition Parts Only/Salvage, Defective , MPN: RA-242-ERT-EDEMO7 , Code: 2AL-ART-ERTRG-RA-242-ERT-EDEMO-DF-F
  • USED OpticsPlanet Exclusive RISE Armament RA-240 Enhanced Rifle Trigger, Straight, 3.5lb Pull, Blue/Silver, RA-242-ERT, EDEMO6, Used, Condition Like New , MPN: RA-242-ERT-EDEMO6 , Code: 2AL-ART-ERTRG-RA-242-ERT-EDEMO6
  • USED OpticsPlanet Exclusive RISE Armament RA-240 Enhanced Rifle Trigger, Curved, 3.5lb Pull, Blue/Black, RA-240-ERT, EDEMO5, Used, Condition Like New , MPN: RA-240-ERT-EDEMO5 , Code: 2AL-ART-ERTRG-RA-240-ERT-EDEMO5
  • USED OpticsPlanet Exclusive RISE Armament RA-240 Enhanced Rifle Trigger, Straight, 3.5lb Pull, Blue/Silver, RA-242-ERT, EDEMO9, Used, Condition Fair , MPN: RA-242-ERT-EDEMO9 , Code: 2AL-ART-ERTRG-RA-242-ERT-EDEMO9
  • USED OpticsPlanet Exclusive RISE Armament RA-240 Enhanced Rifle Trigger, Curved, 3.5lb Pull, Blue/Black, RA-240-ERT, EDEMO8, Used, Condition Fair , MPN: RA-240-ERT-EDEMO8 , Code: 2AL-ART-ERTRG-RA-240-ERT-EDEMO8
  • OpticsPlanet Exclusive RISE Armament RA-240 Enhanced Rifle Trigger, Curved, 3.5lb Pull Weight, Anodized, Graphite, Silver, RA-240-GPHT-SLVR , MPN: RA-240-GPHT-SLVR , UPC: 850043415701 , Code: 2AL-ART-ERTRG-RA-240-GPHT-SLVR
  • USED OpticsPlanet Exclusive RISE Armament RA-240 Enhanced Rifle Trigger, Straight, 3.5lb Pull, Blue/Silver, RA-242-ERT, EDEMO8, Condition Fair, Missing Item , MPN: RA-242-ERT-EDEMO8 , Code: 2AL-ART-ERTRG-RA-242-ERT-EDEMO-MI-D
  • OpticsPlanet Exclusive RISE Armament RA-240 Enhanced Rifle Trigger, Curved, 3.5lb Pull Weight, Anodized, Graphite, Black, RA-240-GPHT-BLK , MPN: RA-240-GPHT-BLK , UPC: 850043415695 , Code: 2AL-ART-ERTRG-RA-240-GPHT-BLK
  • USED OpticsPlanet Exclusive RISE Armament RA-240 Enhanced Rifle Trigger, Curved, 3.5lb Pull, Blue/Black, RA-240-ERT, EDEMO7, Used, Condition Fair , MPN: RA-240-ERT-EDEMO7 , Code: 2AL-ART-ERTRG-RA-240-ERT-EDEMO7
  • OpticsPlanet Exclusive RISE Armament RA-242 Enhanced Rifle Trigger, Flat, 3.5lb Pull Weight, Anodized, Graphite, Silver, RA-242-GPHT-SLVR , MPN: RA-242-GPHT-SLVR , UPC: 850043415725 , Code: 2AL-ART-ERTRG-RA-242-GPHT-SLVR
  • OpticsPlanet Exclusive RISE Armament RA-242 Enhanced Rifle Trigger, Flat, 3.5lb Pull Weight, Anodized, Graphite, Black, RA-242-GPHT-BLK , MPN: RA-242-GPHT-BLK , UPC: 850043415718 , Code: 2AL-ART-ERTRG-RA-242-GPHT-BLK
  • USED OpticsPlanet Exclusive RISE Armament RA-240 Enhanced Rifle Trigger, Straight, 3.5lb Pull, Blue/Silver, RA-242-ERT, EDEMO5, Used, Condition Fair , MPN: RA-242-ERT-EDEMO5 , Code: 2AL-ART-ERTRG-RA-242-ERT-EDEMO5
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