After constructive feedback from the market, OLDA has made further developing, based on the frame bolt 600 HZA (previously 100 HZA).
The result is OLDA 602 HZA, with increased distance from the bolt to the latch (c/c) 100 mm., increased stroke length, 25 mm. and forend and bolt in stainless steel. The product depth has also been decreased to 40,5 mm (including the 2,5 mm forend).
Product page for OLDA 602 HZA – automatic frame bolt