Breda PG

The Breda PG (Italian: Presa Gas, "gas operated") was a prototype automatic rifle manufactured by Breda.

The PG was a gas-operated rifle fed from a 20-round magazine. It was trialled by the Italian government and sold to the Costa Rican government. The Italian models were semi-automatic only and chambered in 6.5×52mm Mannlicher–Carcano, while the Costa Rican models were chambered in 7x57mm Mauser and had an automatic fire mode with a four-round burst limiter. This makes the PG the world's first burst-firing automatic rifle.

Around 400 Breda PG rifles were issued to the Costa Rican military, which was disbanded in 1948.

At least one Breda PG rifle was used at the Aberdeen Proving Grounds to help develop the burst-firing function on the M16 rifle.