This is a guide for cutting the aluminum reinforcement tube for the FTN.5 Flow - 5.56. It's meant to cut the tube just shy of 189mm with a hacksaw. The tube should end before the rear exhaust vents on the can. There is space in the center of the tool to allow you to hose clamp the tube in while cutting, if you have one large enough. You should really use one though.

Big ups to PLAboii and the tester chads for the FTN.5 release.

Changelog:
1/22/26 - Made the overhangs in the tube cutting channel more printable. I recommend a layer height </= .16mm, but it shouldn't matter as much now.
1/23/26 - Fixed the hose clamp space so the jig sits flush on a table with a larger hose clamp installed. Added some more relief cuts and a couple inspection windows so you can see the tube sitting flush in the back of the jig.
2/3/26 - Added clearance for the tube in both Jig and Flush Cut Guide. Also make the flush cut guide hose clampable as well.

GunCAD Index Tags:
FTN
FTN.5
FTN 5
FTN 5 FLOW
CUTTING JIG
SILENCER
PotatoCanzRJustAsGud

LBRY Tags: ftn.5; suppressor; silencer; 3d2a; ftn.5 flow