AB Prototype A-10 Threaded Conversion Barrel for SIG Sauer P320, .40S&W, 5.7", no LCI, Black DLC, .578"-28
This is a new AB Prototype A-10 threaded conversion barrel for the SIG Sauer P320 X-TEN in .40S&W. This precision machined barrel is cut from 416 stainless steel and threaded .578"-28 (standard .45 thread). Tighter-than-factory tolerances, but still a direct replacement barrel for the SIG Sauer P320 X-10. Will work with the P320 X-TEN models in only or for a custom .40 X-TEN P320 build. Also works with aftermarket XTEN (X10) slides, AB Prototype and others. Will not work with X5, M17 or other 9mm/.40SW full-size (4.7" or 5.0") slides. Drop-in fit for reliability.
The .578"-28 thread is the standard thread for most .45ACP pistol accessories, i.e. suppressors, comps, thread protectors, etc. Our threaded barrels will allow compatibility with most 45 barrel accessories on the market.
Please note this barrel will not fit X5s and similar P320s in 9mm, .40, .357SIG or .45. THREADED BARRELS ARE NOT LEGAL IN ALL STATES. Please be aware of state laws before ordering/installing.
Includes: 1 AB Prototype A-10 5.7" Threaded Barrel (.578"-28), .40SW (NO LCI CUT), thread protector, Black. Factory grease may be present. No other parts are included.
Installation is available for an additional charge.
DISCLAIMER: AB PROTOTYPE IS NOT AFFILIATED WITH SIG SAUER®. These barrels are not manufactured, endorsed or warrantied by SIG Sauer®.
You can find our 10mm slides here: A-10 10MM SLIDE
