At a glance it said "Marlin" to me, but a quick peek at an 81 suggests I'm wrong. The rear tube hangar that's also where takedown screw goes is very Marlin looking. On my 81 there's a taper where it mates with reciever, ut yours appears uniform, and there's a weird (I'm guessing sling mount) thing on your front hanger that's unlike anything I recall seeing.
By process of elimination it still may be Marlin, but not for the 81.
---looking through the Marlin Models-- thanks
thought the swivel clip/attachment would have been the giveaway![]()



























