AirgunsSig SauerSold by SIG SAUER

Sig Sauer

SIG MCX Air Rifle, FDE (Pellet)

Co2-powered Air

Rifle for tactical drills and

Chambered .177

Pellet

30-round Rapid-firing

Design for extended practice sessions

18-inch Rifled

Steel barrel

Synthetic Handguard

Tactical front grip

$209.99
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SKU: AIR-MCX-177-88G-30-FDE

Overview

Built for shooters who want a realistic training platform without stepping onto the range with a centerfire rifle, this CO2-powered air rifle is suited to tactical drills and target practice alike. It offers 30-round rapid-firing capability and .177 pellet chambering, with features that support a carbine-style setup, including a synthetic handguard, Picatinny rail, tactical front grip, and flip-up sights. The 18-inch rifled steel barrel adds a more traditional precision-oriented element to the package, while the FDE finish gives it a subdued, field-ready look. For best results, the product notes recommend SIG SAUER or equivalent premium pellets within the listed grain weight range.

Why Hunters Choose the Sig Sauer

Co2-powered Design

Supports economical training and practice

30-round Capacity

Allows rapid-firing drills with fewer

Chambered .177

Pellet for common target-practice use

Includes 18-inch

Rifled steel barrel for pellet

Equipped Picatinny

Picatinny rail, tactical grip, and

Key Features

  • CO2-powered air rifle for tactical drills and target practice
  • Chambered in .177 pellet
  • 30-round rapid-firing design for extended practice sessions
  • 18-inch rifled steel barrel
  • Synthetic handguard with tactical front grip
  • Picatinny rail with flip-up front and rear sights

Best Used For

  • Tactical drills and structured training sessions requiring realistic SIG MCX-style handling
  • Target practice with economical CO2-powered pellet shooting at the range or home
  • Users wanting a .177 pellet air rifle with 30-round rapid-firing capability
  • Shooters who prefer included tactical features like Picatinny rail and flip-up sights

Specifications

Barrel Length18"
Barrel Typerifled steel barrel
Caliber.177 pellet
Capacity30 rounds
ColorFDE
Front Griptactical front grip
Front Sightflip-up front sight
Handguardsynthetic handguard
Pellet RecommendationSIG SAUER or equivalent premium pellets
Performance NoteResults may vary based on ammo weight, temperature, and altitude.
Power SourceCO2-powered
RailPicatinny rail
Rear Sightflip-up rear sight
Recommended Pellet Grain Weightlisted below

Pros

  • CO2-powered design supports economical training and practice sessions.
  • 30-round capacity allows rapid-firing drills with fewer reloads.
  • Chambered in .177 pellet for common target-practice use.
  • Includes an 18-inch rifled steel barrel for pellet shooting.
  • Equipped with Picatinny rail, tactical grip, and flip-up sights.

Considerations & Trade-offs

  • CO2 operation means performance can vary with temperature, so conditions may affect consistency during training or target sessions.
  • The 30-round capacity supports extended strings of fire, but it also means the rifle is built around pellet use rather than a traditional single-shot training format.
  • It is chambered in .177 pellet, which suits practice and drills but may not match the feel or use case of larger-caliber air rifles.
  • Peak performance is tied to premium pellets, so ammo choice is an important part of getting the intended result.

Suggested Comparisons

  • Pellet air rifles
  • CO2-powered air rifles
  • Tactical-style training airguns
  • .177 caliber air rifles

Suggested Accessories

  • Pellets
  • CO2 cartridges
  • Air rifle targets
  • Cleaning kit

Frequently Asked Questions

What type of ammunition does the SIG MCX Air Rifle use?

It is chambered in .177 pellet.

How many rounds does it hold?

The product description states it delivers 30 rounds of rapid-firing.

What kind of power source does it use?

It is CO2-powered.

What features are included for training or handling?

Listed features include an 18" rifled steel barrel, synthetic handguard, Picatinny rail, tactical front grip, and flip-up front and rear sights.

What pellets are recommended for peak performance?

The description recommends using SIG SAUER or equivalent premium pellets with a grain weight listed below. The provided data does not include the specific grain weight.