Hi Alejandro, no sir, due to the pistol grip. A semi-auto shotgun cannot have a pistol grip.
Prohibited - A semiautomatic shotgun that has any of the following:
A. A folding or telescoping stock;
❌ B. A grip that is independent or detached from the stock that protrudes conspicuously beneath the action of the weapon. The addition of a fin attaching the grip to the stock does not exempt the grip if it otherwise resembles the grip found on a pistol;
C. A thumbhole stock;
D. A forward pistol, vertical, angled, or other grip designed for use by the nonfiring hand to improve control;
E. A fixed magazine in excess of seven rounds; or
F. A revolving cylinder shotgun.
budsgunshop.com/feeds/state_reg/washington_restrictions.pdf

sorry the pistol grip " B. A grip that is independent or detached from the stock that protrudes conspicuously beneath the action of the weapon. The addition of a fin attaching the grip to the stock does not exempt the grip if it otherwise resembles the grip found on a pistol;" makes it illegal budsgunshop.com/feeds/state_reg/washington_restrictions.pdf

Hello Alejandro, unfortunately it does not meet your states restrictions. Sorry

Hi Alejandro and welcome. Unfortunately, no due to the "Thumbhole Stock". Details under Assault Weapons - vii here: budsgunshop.com/feeds/state_reg/washington_restrictions.pdf

I didn't see any restrictions on shotguns.