Powered fastener driver

A powered fastener driver comprising:

• a magazine in which fasteners of a first length or fasteners of a second length greater than the first length are receivable, the magazine including
• a shear block located at a first end of the magazine,
• a loading portion located at a second end of the magazine opposite the first end, and
• a feed channel extending lengthwise through the magazine between the shear block and the loading portion;
• wherein the loading portion of the magazine includes a first slot and a second slot that are each configured to receive fasteners of the corresponding first and second lengths for entry into the feed channel, and a feed channel access gate configured to prevent fasteners of the first length from being loaded into the second slot;
• wherein the feed channel access gate is configured as a pivot member pivotable about a pivot axis between a first, blocking position blocking access to the second slot and a second, bypass position permitting access to the second slot;
• and
• wherein the powered fastener driver further comprises a spring formed separately from the pivot member that biases the pivot member toward the blocking position.