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SIG AK-53


Experimental Battle Rifle


Switzerland | 1953



"The SIG AK-53 served its days as an experimental battle rifle design by the Swiss company as it was not adopted by any one world power."

Performance
Performance specifications presented assume optimal operating conditions for the SIG AK-53. Information presented is strictly for general reference and should not be misconstrued as useful for hardware restoration or operation.
300
Rounds-Per-Minute
Rate-of-Fire
2,450 ft/sec
747 m/sec
Muzzle Velocity
Physical
The physical qualities of the SIG AK-53. Information presented is strictly for general reference and should not be misconstrued as useful for hardware restoration or operation.
1,000 mm
39.37 in
O/A Length
600 mm
23.62 in
Barrel Length
10.80 lb
4.90 kg
Weight
Blow-Forward; Selective Fire
Action
7.5x55mm Swiss M1911
Caliber(s)
20-round detachable box magazine
Feed
Iron Front and Rear
Sights
Variants
Notable series variants as part of the SIG AK-53 Experimental Battle Rifle family line.
AK-53 - Base Series Name; about 50 or fewer units completed.
Authored By: Staff Writer | Last Edited: 05/12/2021 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.

The Swiss concern of Schweizerische Industrie-Gesellschaft (SIG) was responsible for several post-World War 2 self-loading rifle, selective fire projects and among these was the "AK-53" of 1953. This long gun was designed as a "battle rifle" chambered for the local 7.5x55mm Swiss cartridge. It was rather unique in its use of a blow-forward operating system and this wass used to feed cartridges from a 20-round detachable box magazine. However, the AK-53 only existed as an experimental rifle and about 50 or so of the type were completed before the end.

Despite the use of "AK" in the designation, the AK-53 had no relation to the classic line of Kalashnikov assault weapons of Soviet origin.

Very few firearms have relied on the blow-forward method of operation - the first being the Austro-Hungarian Mannlicher Model 1894 service pistol. The process involves the bullet "pulling" the barrel forward (in the case of the AK-53, by way of a piston) as it moves down the bore (the bolt remains in place). This action is used to eject a spent cartridge casing from the chamber and bring a fresh cartridge in line for the next shot. One of the chief benefits of the blow-forward system is in allowing a rifle to be of shorter overall length but, as with any advantages, there also are disadvantages (detailed below).

The AK-53 used this system tied to a gas-operation. The product's aim was to devise a select-fire rifle suitable for mass-production but buyers appeared few and far between. The design sported several deficiencies as the blow-forward system increased jamming and reduced accuracy (no thanks to the moving barrel assembly) while rate-of-fire was inherently low. The heat built up through the closed breech arrangement also held the potential to prematurely ignite (cook off) an awaiting cartridge while it lay in the chamber.

All this coupled with the post-World War 2 gun market being saturated with surplus goods and the AK-53 was forced to the back pages of history in short order.

Outwardly the gun carried a highly conventional look about it. A single-piece wooden stock was in play that made up the forend, receiver, and butt. A useful pistol grip was installed aft of the trigger unit and the magazine well was ahead of the trigger. The metal components were inlaid and the barrel section protruded well-ahead of the forend. Curved magazines were used.

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Operators
Global customers who have evaluated and/or operated the SIG AK-53. Nations are displayed by flag, each linked to their respective national small arms listing.

Contractor(s): Schweizerische Industrie-Gesellschaft (SIG-Sauer) - Switzerland
National flag of Switzerland

[ Switzerland (not adopted) ]
Going Further...
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