Star IR, 7,65 mm Browning (7,65x17 mmSR/.32 Auto)

Type: Semiautomatic pistol
Produced: 1967-1983
Caliber: 7,65 mm Browning (7,65x17 mmSR/.32 Auto)
Action: Blowback
Trigger: Double action
Safety: Thumb lever (frame)
Magazine: 8 rounds
Sights: Rear, open sight adjustable, U notch; Front, blade shape fixed
Grooves: 6 grooves, right-hand twist
Barrel length: 4.33” (110 mm)
Overall length: 7.28” (185 mm)

The Modelo I was created with a view to replacing the pistols of the Fuerzas de Seguridad del Estado (Security State Forces), namely Cuerpo de Carabineros de la República and Guardia Civil pistols, for undercover service, due to the weight and volume of the Astra Modelo 400 and Star Modelo 1921.
The I series is a straight-blowback vest pocket pistol, mechanically designed along the lines of the model F. It has a fixed barrel, that uses the recoil of each shot to expel the empty case and feed the chamber from the magazine, leaving the hammer cocked and the pistol ready to fire. The slide is semi-open, made up of the breech block with side plates, following the classic Star design for its small caliber and pocket pistols. It has a guide piece for disarming the slide, located at the rear of the left side of the frame. The sights are fixed and rudimentary and the extract is located in the upper part of the slide.
The I falls between the H and F series in total size.
Since 1967, when model I is permanently fixed and it is renamed model IR.
This first generation model I pistol was produced from 1932 until 1935, when it was replaced with the second generation pistols.
From 1935 to 1942 an improved model was made of the .32 Auto caliber pistols, with the safety lever moved to the conventional "thumb" position, hinging about the top rear of the frame. Most Star pistols moved to this style in this timeframe, apparently to capitalize on the success of their larger pistols and that of the well-known Colt-Browning pistols from which they took their design cues. There is also a slide lock lever on the left side, of the general pattern of the full-size pistols.
In 1942, the slide lock lever was removed, and the frame modified to include a swell at the bottom of the grip, presumably in a nod to ergonomics and keeping fingers away from the magazine during insertion. Again, this is a feature seen in many other pistols, including the 1942 model F series. This may indicate the frames were forged and machined together for much of their production. This pistol remained in production until 1957, when replaced with the third model pistols that was produced, with notable changes to the style. The barrel was squared to appear more an integral component of the frame, and generally appeal to current style. Controls remained similar, as did the overall size and other characteristics.
A variant supposedly was made in 1967 only of this pistol with a slide stop as well. Production of all third model pistols ended in 1967, apparently replaced with the model IR.
Model IR is very similar to Model FR (.22 Long Rifle), except in caliber.

Credits:
Author's knowledge;
http://star-firearms.com/firearms/gun...
https://play.google.com/books/reader?...

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