Leshiy 2 Valkyrie Regulator tester

So that will increase the length of pull 3.8 inches. Why is it so long? Looks like it could have been made 1 inch long as to not add so much To length of pull. What is the length of pull ( distance from end of butt to trigger) on the Leshiy 2 in stock form? I like the idea but I question if it will effect proper eye relief on some compact scopes.
 
Ok I found the answer. According to this picture the length of pull is 15”. Most rifles are made in the 13 1/2” to 14 1/2” length of pull . This is done to allow scopes to be adjusted for correct field of view and a comfortable hold as arm length varies on different size shooters. I just think a 18” length of pull would really feel like you were a 10 year old holding an adult size rifle. 
74A835EE-9A86-4F29-BCE2-0527A1A01453.1600382484.png