This part replaces part #117
Beretta Gas Valve Spring Set -2 Springs
works on 12ga & 20ga models AL391. 12ga A400 Xcel and Xplor, also the A300 Outlander
Does NOT fit the AL391 Extrema, AL390 or the A400 Xtreme
This set provides correct ejection and bolt speed for greater reliability and less wear. Also provides less felt recoil.
Note: It is recommended that all Beretta parts be installed by a qualified and trained gunsmith.
Also- if you have a 20ga A400 you have not lost your factory gas valve spring- The 20ga version of the A400 never came with one.