They show three on their website with all three having a different part number.
Short action, long action, and norma.
I would have thought the LA magazine would be the best in order to take advantage of the longer bullets and gained powder space. Of course if it won’t mag feed from them then its a no go for me. May its best to stick with the shorter OAL and find where it shoots.
deserttech.com
DT SRS Magazine - Long Action. Designed to be tough and reliable for any SRS owner, the SRS Magazine bosts a simple but effective feature.
deserttech.com