Beretta Xtrema 2
Encyclopedia
The Beretta AL391-Xtrema2 is a semi-automatic shotgun
Semi-automatic shotgun
A semi-automatic shotgun is a form of shotgun that is able to fire a cartridge after every trigger squeeze, without any manual chambering of another round being required...

 developed and produced by Italian firearm manufacturer Beretta
Beretta
Fabbrica d'Armi Pietro Beretta is an Italian firearms manufacturer. Their firearms are used worldwide for a variety of civilian, law enforcement, and military purposes. It is also known for manufacturing shooting clothes and accessories. Beretta is the oldest active firearms manufacturer in the...

. It is currently used by hunters and target shooters, mainly in the United States. The shotgun is commonly referred to simply as the Xtrema2. The shotgun is found in several variants, depending on barrel length, barrel type, and factory-installed camouflage
Camouflage
Camouflage is a method of concealment that allows an otherwise visible animal, military vehicle, or other object to remain unnoticed, by blending with its environment. Examples include a leopard's spotted coat, the battledress of a modern soldier and a leaf-mimic butterfly...

 exterior.

Overview

The Xtrema was released in mid 2004, to answer the call from hunters and target shooters for a complete do-all shotgun. Beretta’s goal was to produce a shotgun that could reliably fire 2¾” loaded with light target loads all the way through the 3½” super magnum round without any modification or settings to be dealt with. They decided to take the AL391-Xtrema, and update it to fit their needs. They also wanted to add as many recoil reduction features as possible to the shotgun to increase follow-up shot
Follow-up shot
In firearms, a follow-up shot is the shot fired subsequently after the first shot. Follow-up accuracy is the accuracy of the follow-up shots, which is usually determined by the recoil and handling of the firearm....

 accuracy while target shooting and hunting.

Technical advantages

The Xtrema2 had several features that were designed to increase accuracy and reliability. For one, Beretta decided to strip away as many o-rings and springs
Spring (device)
A spring is an elastic object used to store mechanical energy. Springs are usually made out of spring steel. Small springs can be wound from pre-hardened stock, while larger ones are made from annealed steel and hardened after fabrication...

 as possible for less chance of wear, and also to make easier for the weapon to be field stripped without the accidental loss of parts. They chose to go with a gas-operated action instead of inertia-driven action.

Another advantage is in the over-bored barrel design, which reduces muzzle jump and also improves shot-patterns.

Beretta also redesigned their stock choke system by increasing the length of the choke inside the barrel for a more gradual constriction, without having to add to the length of the barrel like after-market choke tubes do.

They then also chose to take the time-proven technology of hydraulic shock absorption from car-manufactures and put it in the gun’s stock for up to 44% felt recoil reduction at the shoulder.

Beretta also saw the need for the gun to be protected from the elements so as to protect the gun in harsh hunting conditions such as water-fowl hunting, where salt spray can damage a gun within hours. Beretta’s answer to this need was to coat the gun’s working parts in a micro-thin membrane which completely protects the metal (which are not made from stainless steel, chromium, or aluminum) from corrosion while out in the field.

Other improvements include an extra long barrel tang (the part of the barrel that fits into the receiver, and is actually behind the chamber) to more accurately fix the barrel to the receiver in order to increase accuracy when using slugs with a scope fixed to the receiver.

Stock spacers are also available to change the length of pull without major modification.
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