Beretta A400 Xplor Light Beretta A400 Xplor User Manual - Page 11

Rotating Bolt Head Lock, Gas-operated System With Exhaust Valve, Super Resistant Receiver - 12 ga

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EN ! 12 ROTATING BOLT HEAD LOCK The Beretta semi-automatic A400 Xplor has a breech bolt with a rotating head with two lugs that operate the lock of the barrel breech. The long breech has two indexing lugs and a large support surface that make it possible to eliminate the movement of the barrel when firing, thereby increasing precision. The breech bolt body is connected with the two operating rods and therefore is guided and activated symmetrically, with components sliding more smoothly as a result, for easier disassembly and reassembly of the breech bolt unit. GAS-OPERATED SYSTEM WITH EXHAUST VALVE The exclusive gas-operated system, patented by Beretta, with a self-cleaning cylinder and piston, has a self-cleaning exhaust valve, so that excess pressure caused by the most powerful cartridges can be decreased automatically: as a result, the shotgun without any adjustment or intervention can shoot cartridges from 70 mm (2 3/4 in) /24 g (7/8 oz), to 76 mm (3 in) /57 g (2 oz). The "UNICO" version can fire from 70 mm (2 3/4 in) /24 g (7/8 oz) cartridges to the powerful Supermagnum 89 mm (3 1/2 in) /64 g (2 1/4 oz) loads. Beretta recommends: To immediately obtain superior firearm performance and optimum cartridges versatility from your A400 Xplor, fire some medium power cartridges first (32g/1 1/8 oz). The semi-automatic gas-operated A400 Xplor has also been optimised to ensure lower gas dispersal. As a result, the system has a self-cleaning feature that further minimises maintenance and significantly reduces the stress to which the operating parts are subjected to at higher charges, thereby ensuring the greatest possible service life of the firearm. The new piston has been designed to constantly clean out gunpowder residue in the cylinder, increasing the efficiency of the firearm and reducing the need for maintenance. The elastic piston seal has a rough finish to optimise cleaning. SHOTGUN ASSEMBLY WARNING: In order to prevent damage to the elastic piston seal, first insert the piston into the chamber cylinder and then insert the magazine tube cap shaft through the piston hole. The valve unit is connected to the barrel, making assembly and disassembly of the barrel itself easier. SUPER RESISTANT RECEIVER Completely and precisely machined from a solid block of special light alloy aluminium, it has moveable parts in steel, polymers, high quality light alloys, assembled with particular care, checked and polished to ensure exceptional operation. All metal parts are protected by special finishes against wear, and tear and rusting. The length of the receiver is shorter in the semi-automatic versions of the A400 Xplor series, to minimise bulkiness of the firearm and obtain easy

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12
EN
ROTATING BOLT HEAD LOCK
The Beretta semi-automatic A400 Xplor has a breech bolt with a rotating head
with two lugs that operate the lock of the barrel breech. The long breech has two
indexing lugs and a large support surface that make it possible to eliminate the
movement of the barrel when
fi
ring, thereby increasing precision. The breech
bolt body is connected with the two operating rods and therefore is guided and
activated symmetrically, with components sliding more smoothly as a result, for
easier disassembly and reassembly of the breech bolt unit.
GAS-OPERATED SYSTEM WITH EXHAUST VALVE
The
exclusive
gas-operated
system,
patented
by
Beretta,
with
a
self-cleaning
cylinder
and
piston,
has
a
self-cleaning
exhaust
valve,
so
that
excess
pressure
caused
by
the
most
powerful
cartridges can be decreased automatically: as a result, the shotgun
without any adjustment or intervention can shoot cartridges from
70 mm (2
3
/
4
in) /24 g (
7
/
8
oz), to 76 mm (3 in) /57 g (2 oz). The “UNICO”
version can
fi
re from 70 mm (2
3
/
4
in) /24 g (
7
/
8
oz) cartridges to the powerful
Supermagnum 89 mm (3
1
/
2
in) /64 g (2
1
/
4
oz) loads.
Beretta recommends:
To immediately obtain superior
fi
rearm performance and
optimum cartridges versatility from your A400 Xplor,
fi
re some medium power
cartridges
fi
rst (32g/1
1
/
8
oz).
The semi-automatic gas-operated A400 Xplor has also been optimised to ensure
lower gas dispersal. As a result, the system has a self-cleaning feature that
further minimises maintenance and signi
fi
cantly reduces the stress to which the
operating parts are subjected to at higher charges, thereby ensuring the greatest
possible service life of the
fi
rearm.
The new piston has been designed to constantly clean out gunpowder residue
in the cylinder, increasing the ef
fi
ciency of the
fi
rearm and reducing the need for
maintenance. The elastic piston seal has a rough
fi
nish to optimise cleaning.
SHOTGUN ASSEMBLY WARNING:
In order to prevent damage to the elastic
piston seal,
fi
rst insert the piston into the chamber cylinder and then insert the
magazine tube cap shaft through the piston hole.
The valve unit is connected to the barrel, making assembly and disassembly of
the barrel itself easier.
SUPER RESISTANT RECEIVER
Completely and precisely machined from a solid block of special light alloy
aluminium, it has moveable parts in steel, polymers, high quality light alloys,
assembled with particular care, checked and polished to ensure exceptional
operation. All metal parts are protected by special
fi
nishes against wear, and tear
and rusting. The length of the receiver is shorter in the semi-automatic versions
of the A400 Xplor series, to minimise bulkiness of the
fi
rearm and obtain easy
!