Springfield XD-M Threaded Barrel, 45 ACP, Fits XD-M 45 ACP, 4.5", Melonite Finish, Black XDM4501TB-KIT Available to order on-line. Ships in 5-14 days $122.35
Silencerco Threaded Barrel for S&W M&P .45 ACP 5.18 Inch Barrel .578x28 Threads Black Nitride Finish Available to order on-line. Ships in 5-14 days $182.00
Sig Sauer P220 Barrel, 45ACP, Chrome/Phosphate, Threaded Available to order on-line. Ships in 5-14 days $229.99
OEM Glock 21 Threaded Barrel, 45 ACP, M16X1LH Thread Pitch 39895 Available to order on-line. Ships in 5-14 days $199.95