The RETAY Masai Mara 3.5 and Shotguns Are Purpose Built For The Most Serious Waterfowl Hunters In The World. They Incorporate A Performance Rated Heavy Duty Recoil Buffer Spring Located In The Stock. The HD Performance Spring Improves Performance and Longevity With Modern 3" Hunting Loads. The HD Buffer Spring Also Reduces Felt Recoil As Compared To A Standard Buffer Spring. - CHAMBER 12 GA 3.5" - MAGAZINE 4+1 capacity with 2 3/4" shells - CHOKES Interchangeable MaraPro Chokes C-IC-M-IM-F