Springfield Magazine for XD Models .357 SIG 12 Round Matte Available to order on-line. Ships in 5-14 days $28.85
Sig Barrel, P229, 3.9", 357 Sig, Blue BBL-229-357 Available to order on-line. Ships in 5-14 days $179.99
Sig Caliber X-Change Kit For SIG P320C .357 SIG 3.9 Inch Barrel Black Nitron With Night Sights and 13 Round Magazine Available to order on-line. Ships in 5-14 days $425.00