Product Description
CNC Milled from a solid block of 4140 steel.
Comes with our CNC machined green no-jam delrin mag follower and 1 million cycle count spring and 3 position front sling mount.
Made in Canada.
Will fit Mossberg 590,535,835.
3 position front sling mount.
+1 - 2.25 inches
+2 - 4.5 inches and is designed for pre-2017 590/590a1 or 835
FINISH CERAKOTE BLACK
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Product Reviews
4 Reviews Hide Reviews Show Reviews
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Mossberg 590 mag tube mk II plus 1
Excellent bit of kit. Arrived in UK within 10 days of placing order. Fits perfectly on my Mossberg Mariner and adds that extra 1 round capacity that is needed in IPSC competition. Major benefit is that it is a single piece, where other extensions comprise a nut and a tube and possibly an end cap as well (so three threads that might unscrew in use, where the S&J only has what amounts to a replacement factory end cap that includes a built in extension, so it stays put once attached. No barrel clamp needed). I would recommend it.
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Mossberg 835 UltiMag
Excellent product! Thankfully my Canadian brothers to the north have the part I needed. Thank you !
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Mag Tube + 1 Extension - Mossberg 590
Quick shipping, Excellent quality, Looks fantastic. Only tested with snap caps so far but everything seems to be working great and I love the HiViz follower. Very happy with this purchase and service from S & J Hardware. Will definitely be purchasing from them again.
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Mossberg plus 1 extension
No complaints. Quality feels excellent, installation was a breeze. Haven't had the gun to the range yet, and won't get the chance for a while, but feels nice and snug. Recommended.
