Hämmerli AP20 Pro
Hämmerli (Carl Walther GmbH) · Pistol · In Production · 2023
Also known as: Hammerli AP20 PRO, AP20 Pro, Walther Hämmerli AP20 Pro
Overview
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.
Specifications
| Weight (empty) | 980 g (34.6 oz) |
| Overall Length | 415 mm (16.34") |
| Barrel Length | 250 mm (9.84") |
| Height | 170 mm (6.69") |
| Width | 50 mm (1.97") |
| Sight Radius | 370 mm (14.57") |
| Action Type | Single Action |
| Firing Mechanism | Striker Fired |
| Trigger Type | Single Action |
| Trigger Pull | 5 N (1.1 lbf) |
| Magazine Capacity | 1 rounds |
| Magazine Type | Internal |
| Muzzle Velocity | 150 m/s (492 fps) |
| Muzzle Energy | 7.5 J (6 ft·lbf) |
| Effective Range | 10 m (11 yd) |
| Maximum Range | 25 m (27 yd) |
| Barrel Rifling | Rifled |
| Frame Material | Aluminum Alloy |
| Barrel Material | Steel |
| Stock Material | Walnut |
| Finish | Anodized Aluminum |
Calibers
- .177 Air (4.5mm) · primary — also known as .177 caliber, 4.5mm, .177 pellet
Features
- Firing modes: Manual
- Feed systems: Single-Shot Manual Pellet Loading
- Safety mechanisms: Dry-Fire Mechanism
- 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
Base model
Production
Production years: 2023-present
Premium variant of the AP20 (introduced 2022); ongoing production.
Origin
Country of origin: Germany
Designer: Carl Walther GmbH
Notes
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.
Background
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.