All Orders Will Ship Same Business Day if ordered before 4:30pm CST
We do not ship to the following states: CA, CO, CT, DE, FL, HI, IL, MA, MD, MN, NJ, NV, NY, OR, and RI.  
If you order from one of these states, You will be refunded and a 20% restocking fee will be charged. 
True drop-in, forced reset trigger for AR-15 rifles. Delivers 700–900 RPM with full semi-auto legality via mechanical return-to-battery lockout. Four-part design, D2 tool-steel internals, 7075-T6 housing. Works with mil-spec, M16, and Geissele (with OTD) triggers.
The ARSS15 in conjunction with a regular milspec trigger and safety selector will be 2 position (Safe and Forced Reset mode) 
For 3 position compatibility, you will need either a KAK Semi Auto 3 position safety selector OR a M16 Style safety and Trigger. 
A 45 degree Super Safe cut trigger will also work.
You will also need a Full Auto style Bolt Carrier Group as well as an H2 or H3 buffer for reliable function. (I recommend an H3)
Due to slight tolerance differences in uppers and lowers, some fitting may be required. Please contact support@2aninja.com for troubleshooting  and questions. 
I will be posting informational videos on instagram @2a_ninja