Hämmerli · Pistol

Hämmerli AP20 Pro

Name: Hämmerli AP20 Pro
Brand: Hämmerli

Single action · .177 Air (4.5mm) · introduced 2023

Also known as Hammerli AP20 PRO, AP20 Pro, Walther Hämmerli AP20 Pro

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About the Hämmerli AP20 Pro

The Hämmerli AP20 Pro is a single-shot 10-metre match air pistol chambered in .177 (4.5mm) and powered by a 200 bar pre-charged pneumatic system. The Pro is the premium tier of the AP20 line, fitting a 3D-adjustable walnut competition grip, an aluminum cylinder with pressure gauge good for roughly 150 shots per charge, a fine two-stage mechanical match trigger, and fully adjustable open sights with a rotatable front element. It is built for ISSF Olympic and ISSF-style 10 m air pistol competition.

The Hämmerli name has been synonymous with precision target shooting since 1863, supplying Olympic and world-championship pistols for over a century. The AP20 Pro continues that lineage as a modern entry-to-mid level 10 m match air pistol, giving competitive ISSF shooters an adjustable, low-recoil training and match platform.

Hämmerli AP20 Pro specifications

General

Type: Pistol
Action: Single action
Firing mechanism: Striker-fired
Trigger: Single action
Trigger pull: 0.5 kg (1.1 lb)
Calibres: .177 Air (4.5mm)
Magazine capacity: 1 rounds
Magazine: Internal

Dimensions

Barrel length: 250 mm (9.8 in)
Overall length: 415 mm (16.3 in)
Height: 170 mm (6.7 in)
Width: 50 mm (2.0 in)
Weight (empty): 0.98 kg (2.16 lb)
Sight radius: 370 mm (14.6 in)

Barrel

Rifling: Rifled

Materials

Barrel: Steel
Receiver / frame: Aluminum alloy
Stock: Walnut
Finish: anodized aluminum

Performance

Muzzle velocity (typical): 150 m/s (492 fps)
Muzzle energy (typical): 7.5 J (6 ft·lb)
Effective range: 10 m

History

Introduced: 2023
Production status: In production
Country of origin: Germany
Designer: Carl Walther GmbH

Features

200 bar pre-charged pneumatic air system
Aluminum cylinder with pressure gauge
Two-stage adjustable mechanical trigger (~500 g)
Approximately 150 shots per air charge
Fully adjustable open match sights
Rotatable front sight (4.2 / 4.8 / 5.2 mm widths)
Adjustable 3D walnut grip in left- and right-hand options
Interchangeable colored barrel jackets

Safety

Dry-fire mechanism

The AP20 family is engineered and produced by Carl Walther GmbH in Germany under the Swiss-heritage Hämmerli brand. The standard AP20 launched in 2022, with the Pro variant adding the adjustable walnut grip and competition refinements.

This is a variant of the Hammerli AP20.