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Umarex

Umarex Gauntlet 2 SL25 PCP Pellet Rifle

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

.25 Caliber

PCP pellet rifle with side-lever

Uses 8-shot

Auto-indexing rotary magazine

Pre-charged Pneumatic

A 24 cubic inch onboard

Maximum Fill

2,100 PSI regulated output

Combination Dovetail/picatinny

Scope rail for optic mounting

$379.99
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SKU: 2254833-723364548338

Overview

Built for hunters and airgun shooters who want a .25 caliber PCP platform with straightforward handling, this rifle pairs a side-lever action with an 8-shot auto-indexing magazine for quick follow-up shots. It is set up for optics with a combination dovetail/Picatinny scope rail, and the adjustable cheek rest helps support a more consistent shooting position. The all-weather ergonomic FDE stock and manual safety make it a practical choice for field use and range sessions alike. It also accepts .25 caliber pellets and airgun slugs, giving it flexibility for different shooting needs without adding unnecessary complexity.

Why Hunters Choose the Umarex

Side-lever Action

Smooth, straightforward shooting cycle

8-shot Auto-indexing

Rotary magazine supports multiple follow-up

Combination Dovetail/picatinny

Scope rail accepts a wide

Adjustable Cheek

Rest helps tailor the fit

Compatible .25

.25 caliber pellets and airgun

Key Features

  • .25 caliber PCP pellet rifle with side-lever action
  • Uses an 8-shot auto-indexing rotary magazine
  • Pre-charged pneumatic platform with a 24 cubic inch onboard tank
  • Maximum fill pressure is 4,500 PSI with 2,100 PSI regulated output
  • Combination dovetail/Picatinny scope rail for optic mounting
  • Includes a manual safety and adjustable cheek rest
  • Compatible with .25 caliber airgun slugs

Best Used For

  • Hunters wanting a .25 caliber PCP rifle with side-lever operation and magazine-fed shooting.
  • Users planning to mount optics on a combination dovetail/Picatinny scope rail.
  • Shooters who prefer an adjustable cheek rest for a more personalized sighting position.
  • Those looking for a pre-charged pneumatic rifle with regulated output and manual safety.
  • Airgun users wanting compatibility with .25 caliber pellets and airgun slugs.

Specifications

ActionSide-Lever Action
Caliber.25 Caliber
Cheek RestAdjustable Cheek Rest
CompatibilityCompatible with .25 Caliber Airgun Slugs
Magazine Capacity8-Shot
Max Fill Pressure4,500 PSI
Muzzle Energy55 FPE
PowerplantPre-Charged Pneumatic
Regulated Pressure Output2,100 PSI
SafetyManual Safety
Scope MountCombination Dovetail/Picatinny Scope Mount
Stock ColorFDE
Stock TypeAll-Weather Ergonomic Stock
Tank Capacity24 Cubic Inch On-Board Tank
Velocity1,000 FPS with 24 Grain Pellet

Pros

  • Side-lever action offers a smooth, straightforward shooting cycle.
  • 8-shot auto-indexing rotary magazine supports multiple follow-up shots.
  • Combination dovetail/Picatinny scope rail accepts a wide range of optics.
  • Adjustable cheek rest helps tailor the fit to the shooter.
  • Compatible with .25 caliber pellets and airgun slugs.
  • Pre-charged pneumatic design with regulated output and onboard tank.

Considerations & Trade-offs

  • The 8-shot auto-indexing magazine supports follow-up shots, but it still requires reloading after each full magazine.
  • The rifle is regulated and uses a 24 cubic inch onboard tank, so shot count and fill routine will be part of regular use rather than a simple single-fill setup.
  • The combination dovetail/Picatinny rail gives optic flexibility, but you will still need to choose and mount a scope or sight separately.
  • It is chambered in .25 caliber and compatible with .25 caliber airgun slugs, so ammunition selection is more specialized than with smaller pellet calibers.

Suggested Comparisons

  • Pre-charged pneumatic pellet rifle
  • Side-lever air rifle
  • .25 caliber airgun platform
  • Scoped hunting air rifle

Suggested Accessories

  • Scope mount / optic
  • Pellet storage
  • Airgun pellets
  • Pellet trap / target

Frequently Asked Questions

What caliber is the Umarex Gauntlet 2 SL25 built for?

It is a .25 caliber pellet rifle, and it is also listed as compatible with .25 caliber airgun slugs.

What action does this rifle use?

The Gauntlet 2 SL25 uses a side-lever action.

What type of power system does it use?

It is pre-charged pneumatic powered and has a 24 cubic inch on-board tank.

What magazine capacity does it have?

It uses an 8-shot auto-indexing rotary magazine.

What optics mounting options are provided?

It includes a combination dovetail/Picatinny scope mount for attaching an optic.