One (1) GR5 “Grade 5″ Titanium 2.5” Tube Extension for the Grade 5 Titanium Adaptive Solvent Trap Kit: Also compatible with the 7075 Billet Type III Anodized Adaptive Solvent Trap Kit. This 2.5″ tube extension is the same tube that comes with the 1.57″ GR5 Titanium AST Kit and has a 1.375 – 24 TPI Thread Pitch.
Damage to the Grade 5 Titanium or the Billet Aluminum version of this tube extension is extremely rare, to non-existent – We have not had a single report of a customer needing a new tube due to damage. The reason most of our customers order additional AST Tubes is to have an extra tube in a different type of material, to swap the tube for use on various firearms. Mixing and matching certain parts between aluminum and titanium is not uncommon.
Some customers will purchase a Billet Aluminum AST Kit, and then split the 8 adaptive cups that are included with the kit, between two solvent traps. Some customers then utilize the 1/2×28″ thread on one kit and the 5/8×24″ thread on another kit – more often then not, they will purchase an additional 3″ tube extension and sealed end cap, creating two solvent trap kits!