Description
Tuna Cans BackFin – XL (12-Baffle) — Hybrid 17-4 / 7075 | 1.625″ OD | .375 Bore – Affordable Silencer
The Tuna Cans BackFin – XL is the longest BackFin option for shooters who want maximum internal volume and the most baffle stack while still keeping weight down. It’s a dedicated suppressor for .300 Blackout and 8.6 Blackout, built to run hard without turning your rifle into a boat anchor.
Up front, it features a large 3″ blast chamber made from heat-treated 17-4 stainless steel, plus a heat-treated 17-4 stainless first blast baffle—built to take the highest heat and pressure where it matters most. The remaining baffles and the end cap are made from aero-grade 7075 aluminum, saving weight while maintaining durability.
With a .375 bore and 1.625″ OD, the BackFin – XL delivers strong performance in a lightweight, tough package.
Important: This suppressor has a .375 bore and cannot be used with 9mm (bore is too small).
Specs
OD: 1.625″
Length: 10 5/16″
Weight: 15 oz
Baffles: 12
Bore: .375
Blast Chamber: 3″ heat-treated 17-4 stainless
First Blast Baffle: heat-treated 17-4 stainless
Remaining Baffles + End Cap: aero-grade 7075 aluminum
1.375×24 standard TPI Hub Threaded ( DOES NOT COME WITH A MOUNT)
Bore / Caliber Notes
Dedicated for .300 Blackout and 8.6 Blackout
Not for 9mm (bore too small)
Bolt-action rated: 7.62 / .308 / 300 Win Mag
Full-Auto Rating
FULL AUTO rated: .300 Blackout / 8.6 Blackout


















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