Thank you for your interest in Trijicon products. Due to the eye relief of our ACOG scopes, they will not perform well in the forward mounting position of the Springfield M1A. You may want to take a look at our Reflex gunsights, which offer unrestricted eye relief and a dual-illuminated aiming reticle.
I'd be happy to send you our full catalog with more details on the Reflex Gunsight, please reply with an address to which you'd like this information
packet sent.
Carrie Lettieri
Customer Service
info@trijicon.com
1-800-338-0563