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Barrels

STI barrels are made from 416 rifle grade stainless steel billet forgings. The bore is gun drilled, button rifled, then air gauged to offer the most exacting size, and most consistent barrel available. The rifling is 1 in 16 twist and has six lands and grooves. The barrels are vacuum heat treated and vacuum tempered to 40 Rockwell, then machined to exacting specifications. The barrels are short chambered to allow gunsmiths to cut the chamber to their application.

5.00” Bull Barrels

Item Part Number
.355 200-50.351100-00
9mm 200-509191100-00
.38 Super 200-503801100-00
.400 200-50.401100-00
.40 S&W 200-504001100-00
.450 200-50.451100-00
.45ACP 200-504501100-00

Threaded Bull Barrels

Item Part Number
9mm 200-509192104-00
.40 S&W 200-504002104-00
.45 ACP 200-504502104-00

5.00” Bushing Barrels

Item Part Number
.355 200-50.352100-00
9mm 200-509192100-00
.38 Super 200-503802100-00
.40 S&W 200-504002100-00
.45ACP 200-504502100-00

Trubor (T1)

Item Part Number
.355 200-553551101-00
9mm 200-559191101-00
.38 Super 200-553801101-00

Trubor (T2)

Item Part Number
.355 200-553551102-00
9mm 200-559191102-00
.38 Super 200-553801102-00

Trubor (TX1)

Item Part Number
.355 200-413551104-00
9mm 200-419001104-00
.38 Super 200-413801104-00

Trubor (TX2)

Item Part Number
.355 200-553551105-00
9mm 200-559001105-00
.38 Super 200-553801105-00

Trubor Blank

Item Part Number
.355 200-553801103-00

Bull BarrelsBushing BarrelsTrubor Barrels

Bull Barrels

Calibers: .355, 9mm, .38 Super, .400, .40 S&W, .450, .45ACP

501-bull-barrel

5.01” Bull Barrel
bull-barrel-threaded-5

5.00″ Bull Barrel Threaded

Bushing Barrels

Calibers: .355, 9mm, .38 Super, .400, .40 S&W, .450, .45ACP
Includes: Barrel, Stainless Steel Bushing, Barrel Link and Pin

511-bushing-barrel

5.11” Bushing Barrel

 

Trubor Barrels

T1 Available Calibers: .355, 9mm, .38 Super
TX Available Calibers: .355, 9mm, .38 Super
T2 Available Calibers: .355, 9mm, .38 Super
Non-Port Trubor Blank: .355, 9mm, .38 Super

trubor-T1

Trubor Barrel (5.01”)
with Integral T1 (1.60”) Compensator
trubor-T2

Trubor Barrel (5.01”)
with Integral T2 (2.00”) Compensator
trubor-barrel-tx2

Trubor Barrel (5.01”)
with Integral TX2 (2.00”) Compensator

 

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