M4 A1 18,5" Green | Benelli Defense

Shotguns \ M4 A1 18,5″ Green

M4 A1 18,5″ Green

DESCRIPTION

The M4 A1‘s metal components are chrome-plated, anodized, or coated with heavy phosphate and Cerakote to resist rust and corrosion even in the harshest conditions. Its fore-end is a Multi-rail Handguard made of aluminum, equipped with five-slot Weaver rails that can be positioned at 3, 6, 9, or 12 o’clock. The pistol grip is crafted from a durable synthetic polymer, ensuring a secure hold in both wet and dry conditions.

The telescoping aluminum buttstock offers five adjustable positions, allowing for easy retraction for portability and storage. The extended magazine accommodates seven 2 3/4-inch shells or six 3-inch magnum shells. Assembly and disassembly are straightforward and require no tools. The upgraded M4A1 version features oversized controls, QD sling swivel systems, and fiber optic dot sights (red front/green rear), with optional tritium inserts available. The Cerakote green finish highlights the company’s commitment to sustainability while providing exceptional durability across all environmental conditions.

FEATURES

Operation:

Semiautomatic Auto Regulating Gas Operating

Gauge:

Chamber:

3" magnum

Safety:

Mechanic on trigger and automatic on disconnector

Cut-off:

For rapid cartridge replacement and red cocked hammer indicator

Trigger load:

Between 3.000 and 3.600 kg - 30 and 36 N

Barrell length:

18,5"
470 mm

Magazine capacity:

7 standard or 6 Magnum cartridges (+1 in chamber)

Stock distance from trigger (mm):

355

Sights:

Red dot holographic sight co-witness with ghost ring sight in fibre optic. Adjustable rear/fixed front and picatinny rail

Stock:

In tecnopolymer telescopic stock, adjustable in 5 positions, collapsible to 121 mm

Weight g (unloaded weapon):

3870

Total length (mm):

1005 extended 894 retracted

M4 A1

M4
A1

TECHNOLOGIES

Auto Regulating Gas Operated system

Benelli’s gas operating mechanism is famed for its reliability, strength and safety and guarantees accurate shooting over the years – as approved by the Marines. Simplicity, sturdiness, original and ingenious design are the distinguishing features of the patented A.R.G.O. Auto Regulating Gas Operated system, the gas-operated mechanism at the heart of the MR1 and M4 A1 models.

A.R.G.O. guarantees firing precision, reliability, durability and confirms the technological superiority of Benelli.

Consisting of a gas operation unit containing a short-stroke piston, A.R.G.O. is located under the barrel,near the firing chamber, in order to exploit the hotter gasses and greater pressure. The gasses flowing from the barrel expand (in thegas collection cylinder) and rapidly accelerate the piston stroke,which simultaneously impacts with the bolt follower pins transmitting sufficient thrust to the bolt to send it backwards. The A.R.G.O. guarantees firing precision, reliability, durability and confirms the technological superiority of Benelli.

ACCESSORIES