The former Southampton attacker, who signed for the north London side as a 16-year-old in 2006, marked his 250th outing in a Gunners shirt back in February.
However, the England international insists he is more concerned with winning trophies than clocking up personal milestones.
“I would personally take all of [my] appearances away to win something at this club,” he told Arsenal Player.
“Some people may think I'm mad but I think I'm not selfish. I like to think for the club and the fans.
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“I'm very proud of that [reaching 250 appearances]. I've worked hard through all the lows and the highs. This season especially, there have been a lot of highs. It's a nice positive. I don't want it to stop there.
"I want to continue to play and get back fit soon. It's a fantastic achievement and I'm very happy."
Walcott also expressed his belief that he has developed as a footballer during his seven years at Arsenal.
“I've definitely matured as a player," Walcott added.
"I've always been the same sort of person off the pitch. I've always got time for people. I think at times, the players might look for something to come from nowhere and at times that's maybe [up to] me or the likes of Jack [Wilshere].
“This season has been my best goalscoring and assist-making season. I can see why people may think that now. That's been the biggest step for me.
“The assists are something I'm very proud of. A lot of those come from the wing as well. An assist is just as important as getting a goal.”