I have the M1014 with the solid stock also. I added the mag extension removed the red plug and float a round for a total capacity of 9 rounds. This from a gun that functions like there is know tomarrow. I also added a Specter Gear tactical sling, and nite sights. My M1014 will function with everything from 7/8oz #8 to heavy 00 loads. Ths is the best shot gun I have ever owned and I can't wait to get a SBEII.