This factory original part is manufactured by Beretta, and is a direct replacement for the parts that came in your Beretta shotgun.
Made to the same specifications, this part is perfect to get you back shooting, or to keep as a spare.

• Fits Beretta 391 Xtrema, 391 Xtrema 2, A300 Xtrema, A350 Xtrema, A400 Xtreme Plus, A400 Xtreme Unico, A400 Xcel, A400 Xplor Unico, A400 Xplor Action

Note: It is recommended that all Beretta parts be installed by a qualified and trained gunsmith.