Targetsportsusa, the site that sells 1000 rd cases of ammo with free shipping, has the Shockwave for $369 with free shipping. You pay that, + ffl.

They also have the Remington 870 Tac 14 with raptor grip, $399 with free shipping.

I recently paid to join a local range so I can go all the time, including before and after hours (they gave us a magnetic key and code to the security alarm when we joined). Family deal, will still come out ahead if my son and I go more than once a month, which we do.

They have a Shockwave available for rent, I held it but didn't succumb to renting it yet. They want $499 to buy one... but they want $20 for FFL transfers