Quartermaster QBS-2P Marty McFly Butterfly Knife (4" Satin) QTRMSTR B2TF2

Quartermaster QBS-2P Marty McFly Butterfly Knife (4" Satin) QTRMSTR B2TF2
MSRP: $287.95
Our Price: $249.95
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Item #BHQ-31846 Online Only


  • Overall Length:9.50"
  • Blade Length:4.375"
  • Cutting Edge:4.00"
  • Blade Thickness:0.22"
  • Blade Material:D2
  • Hardness:61-62 RC
  • Blade Style:Standard
  • Blade Grind:Flat
  • Finish:Satin
  • Edge Type:Plain
  • Handle Length:5.125"
  • Handle Thickness:0.54"
  • Handle Material:Titanium
  • Color:Gray
  • Weight:5.69 oz.
  • User:Right Hand, Left Hand
  • Pocket Clip:Tip-Up
  • Knife Type:Butterfly
  • Brand:Quartermaster Knives (QTRMSTR)
  • Model:Marty McFly
  • Model Number:QBS-2P
  • Best Use:Everyday Carry
  • Product Type:Knife


What will it be, a butterfly knife with a razor sharp edge or a trainer blade? The Marty McFly QBS-2 from Quartermaster makes it possible to have both while offering great flipping action. Their patented BladEXChange feature allows the user to remove the handles from one blade with a push button release, and quickly attach to another blade. The QBS-2P includes both a satin finished "live" recurved blade and a dull trainer blade. Handles are satin finished titanium and include a pocket clip and titanium latch.


Customer Reviews

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Poor quality & customer service
Zachary B.
I've had a screw break in this knife and others fall out. QTRMSTR has ignored my request for help multiple times and they have responded to my request they have sent back the knife in unusable condition forcing me to pay for shipping once again to send it in for more repairs.

The flipping ability of this knife is disappointing. But the customer service has been what disappoints me the most.
Blade HQ response:
We're very sorry to hear about the trouble you're having. Have you contacted our customer service department yet (info@bladehq.com)? We'd like to help you get this resolved. Thanks -BHQ
Strong knife but not a great flipper.
Darren M.
I'm sure if you're reading this you've heard from tons of people online that this knife flips like garb-cakes and you're better off getting a morpho. If your sole intention is to flip and do advanced techniques then they're right. However, if you want to casually flip and have a knife that's a good EDC this is pretty strong for that. It's sturdy and the blade is thicker than a bowl of oatmeal.

I just received mine not too long ago and I have to say the zen pins may need a bit of lubing as it's a bit stiff on the opening. The knife itself came a little dull as well which may just be because it hasn't actually been used in ages I'd imagine with how actively people avoid this knife.

In summation: it ain't that bad it's pretty solid and I love mine personally.
josh k.
When I first got this knife I have to say I freaking hated it. The handles are very light compared to the blade. The handles just didn't feel like they had the weight to carry. But I was in love with this D2 tanto. Such a beautiful blade. So I put the trainer on (the quick blade exchange is amazing and a lot more solid than you would think) and started flipping for a few days. I now love this knife. Its not a bali that every flipper is going to love but it is for sure worth adding to the collection. It is currently my edc. I took the pocket clip off because it felt a little awkward when flipping because its on the safe handle. If you're not getting this knife to flip the pocket clip is buttery smooth sliding on and off the pocket. If it didn't hinder my flipping I would have for sure left this on. The over all quality was very nice. I think the handles could have been polished a little better but that is just me nit picking a little. A few weeks after purchasing I am in love with this knife. If I lost it I would for sure buy another just for collecting. Only 300 of each model produced. I'm honestly surprised there are any left. If you are looking for a new unique bali for an edc this is a great knife. If you are looking for something to flip with its great for beginners. But advanced flippers be warned the handles are very light And it is blade heavy. But it is for sure worth the $250 spent. Well made fells good in the hand.