# Benelli M4 H2O Tactical Shotgun - 12 Gauge, 18.5" Barrel

**Brand:** Benelli
**Category:** Semi-Automatic Shotguns
**Caliber:** 12 Gauge

## Specifications

- **Caliber:** 12 Gauge
- **Barrel Length:** 18.5"
- **Capacity:** 5 rounds
- **Finish:** Black
- **Weight:** 124.8 oz
- **Overall Length:** 40"
- **UPC:** 650350117943
- **SKU:** UCBRswohL

## Description

The Benelli M4 H2O is a semi-automatic 12-gauge shotgun with an 18.5-inch barrel and a corrosion-resistant H2O finish.

### Key Specifications
- **Model:** M4 H2O
- **Manufacturer:** Benelli
- **Caliber:** 12 Gauge
- **Action Type:** Semi-Automatic
- **Barrel Length:** 18.5 inches
- **Overall Length:** 40 inches
- **Weight:** 7.8 lbs
- **Magazine Capacity:** 5+1 rounds (accepts 2-3/4" and 3" shells)
- **Choke Type:** Modified (M)
- **Sights Type:** Ghost Ring
- **Grip Material:** Polymer
- **Stock Material:** Synthetic
- **Recoil System:** Heavy
- **Safety Feature:** Yes

### Detailed Features

The H2O finish is a corrosion-resistant coating suited for maritime or high-humidity environments. Ghost ring sights give quick target acquisition without an optic. A Picatinny rail on the receiver lets you mount lights or a red dot if needed. The gas-operated ARGO system cycles a wide range of 12-gauge loads reliably. The synthetic stock is fixed rather than adjustable.

## Frequently Asked Questions

**Q: What caliber is the Benelli M4 H2O?**

A: The Benelli M4 H2O is chambered in 12 gauge and accepts 2-3/4" and 3" shells.

**Q: Who makes the M4 H2O?**

A: The M4 H2O is made by Benelli.

**Q: What type of firearm is the Benelli M4 H2O?**

A: It is a semi-automatic shotgun.

**Q: What is the barrel length of the Benelli M4 H2O?**

A: The M4 H2O has an 18.5-inch barrel.

**Q: How many rounds does the Benelli M4 H2O hold?**

A: It has a 5+1 capacity.

**Q: What sights does the Benelli M4 H2O have?**

A: It has ghost ring sights for quick target acquisition.

**Q: Where can I buy the Benelli M4 H2O?**

A: Compare current vendor offers on this page.

## What Reviewers Say

*Quoted verbatim from YouTube reviews. Each link opens the video at the moment quoted.*

> The Beretta 1301 has been my favorite combat shotgun up until this point and the Benelli M4 gives it a run for its money.
>
> — [704 TACTICAL](https://www.youtube.com/watch?v=pjirym4YrWU&t=107s)

> I could outrun the shotgun meaning I could pull the trigger faster than the action could cycle leaving me with a dead trigger.
>
> — [704 TACTICAL](https://www.youtube.com/watch?v=pjirym4YrWU&t=122s)

> I love the ghost ring sighting system for Slugs and Buckshot for a combat style shotgun because you may be taking shots at a distance.
>
> — [704 TACTICAL](https://www.youtube.com/watch?v=pjirym4YrWU&t=176s)

> I can't outrun this shotgun and that is key because the Benelli M2 left me incredibly disappointed.
>
> — [704 TACTICAL](https://www.youtube.com/watch?v=pjirym4YrWU&t=378s)

## What Customers Say

*AI-generated insights from customer reviews*

The M4 H2O draws consistent praise for its reliability, particularly the ARGO gas system's ability to cycle varied loads without issue. The corrosion-resistant finish is a frequent highlight, especially from owners who use the shotgun in wet environments or store it in humid conditions.

Ergonomics get generally positive marks: the weight distribution and grip geometry work well for fast handling. Recoil is described as manageable by most owners. Price is the main friction point, as the M4 platform sits at the high end of the tactical shotgun market, and discussions regularly weigh whether the premium over more affordable options is justified. Customer service experiences with Benelli are mostly positive.

## Pricing

**7 offers available**

| Vendor | Price |
|--------|-------|
| Palmettostatearmory Com | $1699.99 |
| Grabagun Com | $1799.99 |
| Impactguns Com | $1879.99 |
| Buds Gun Shop | $2002.99 |
| Guns Com | $2099.00 |
| Dirtybirdusa Com | $2099.00 |
| Ar 15 Discounts Com | $2249.00 |

## Similar Products

- [Benelli M4 Tactical A.R.G.O. Shotgun - 12 Gauge, 18.5" Barrel](https://gunsnation.com/p/benelli-m4-tactical-a-r-g-o-shotgun-12-gauge-18-5-barrel/UCBRswoUg)
- [Benelli M4 Tactical Shotgun - A.R.G.O. System, 12 Gauge, 18.5" Barrel](https://gunsnation.com/p/benelli-m4-tactical-shotgun-a-r-g-o-system-12-gauge-18-5-barrel/UCBRswoVf)
- [Benelli M4 H2O Tactical - 12 Gauge Semi-Auto Shotgun](https://gunsnation.com/p/benelli-m4-h2o-tactical-12-gauge-semi-auto-shotgun/UCBRswohS)
- [Benelli M4 Tactical Shotgun - 12 GA, Semi-Auto, 5+1 Capacity](https://gunsnation.com/p/benelli-m4-tactical-shotgun-12-ga-semi-auto-5-1-capacity/UCBRswoTJ)
- [Benelli M4 Tactical Semi-Auto 12GA Shotgun - Rugged Reliability](https://gunsnation.com/p/benelli-m4-tactical-semi-auto-12ga-shotgun-rugged-reliability/UCBRswoSh)
- [Benelli M1014 Tactical A.R.G.O. 12GA Semi-Auto Shotgun](https://gunsnation.com/p/benelli-m1014-tactical-a-r-g-o-12ga-semi-auto-shotgun/UCBRswoSJ)

---
*Data from [GunsNation](https://gunsnation.com)*