Herrington Arms HA Magazine Extension Sig P320 +5 Rounds FDE 5MAGEXT320-FDE/BL-5RD. It works perfectly with 1517 and 21 round magazines This mag extension on a 17rd mag fits in the 141.25mm USPSA gauge This highly durable mag extension is made of light...

In stock
ShipAmount $0.00
RevType 2
Manufacturer Herrington Arms
Sku 5MAGEXT320FDEBL
Identity 26193986251