Crosman Pro Blocks for scope mounting on Ratcatchers and 2240 pistols

Crosman Pro Blox are 11mm scope adapter blocks for the following Crosman Airguns: 1377, 1322, 2240, 2250 (Ratcatcher), 2260, 2289.

Each adapter block has 20mm of 11mm rail.

Two blocks, allen key and instructions supplied.