This OpticsPlanet Exclusive RISE Armament RA-240 Gen 2 Enhanced Rifle Trigger is designed to work in with AR's chambered in 5.56, .308, and .223. The RISE Armament Rave 140 AR Drop-In Trigger is designed to work in AR's chambered in 9mm. You can find that trigger here: https://www.opticsplanet.com/rise-armament-rave-140-flat-3-5lb-drop-in-trigger-w-anti-walk-pins.html
This trigger does come with everything included as seen in part number 12005.
The OpticsPlanet Exclusive RISE Armament RA-240 Gen 2 Enhanced Rifle Trigger is compatible with an AR15 chambered in 300 Blackout.
The OpticsPlanet Exclusive RISE Armament RA-240 Gen 2 Enhanced Rifle Trigger is compatible with the Ruger AR-556. Ensure you use a model that includes 0.154" trigger pins.
Never had a problem with these in Aero lowers
The OpticsPlanet Exclusive RISE Armament RA-240 Gen 2 Enhanced Rifle Trigger will work with 458 SOCOM.
The OpticsPlanet Exclusive RISE Armament RA-240 Gen 2 Enhanced Rifle Trigger will work with Mil-Spec lower receivers, but RISE Armament does not state if their triggers will work with polymer lower receivers. I recommend contacting RISE Armament to confirm compatibility or email us at techsales@opticsplanet.com so we can get more information.
The OpticsPlanet Exclusive RISE Armament RA-240 Gen 2 Enhanced Rifle Trigger will work for a 6.5 Creedmoor AR10 build.
The OpticsPlanet Exclusive RISE Armament RA-240 Gen 2 Enhanced Rifle Trigger will work with a Colt 6920 LE if it uses small trigger pins.
The OpticsPlanet Exclusive RISE Armament RA-240 Gen 2 Enhanced Rifle Trigger can be used for AR15's chambered in a variety of cartridges such as 7.62x39 and 350 Legend.