In reference to Installation ensure that you place the tube magazine retaining plug into the extension prior to installation. Fitment was right on and yeah you'll have to adjust the retaining nut a bit

Clean cut threads, good finish, nice quality spring. Install was pretty straightforward, FYI that internal mag tube plug is a booger to remove. I personally think MAC should consider redesigning that plug to make install/removal of it easier

Fits nice, does exactly what it’s meant for. Did have a little bit of trouble with getting the threads perfect because the shells were getting caught on the threads but other than that it’s perfect

Good quality but no directions supplied with product.

Received as scheduled. The item is well made and matches the existing metal. It came with no instructions. Took a bit of searching YT for a good video. Easy to install. Some complain about thread showing, but that is solved by simply unscrewing or screwing in the tube connector to the right depth to leave room for the actual extension tune be screwed in far enough into the connectors.

Ordering process went well 5 stars - package normal 5 stars - however the main reason this unit was purchased is for the need of a plus 2 shell in your shell tube, sadly that was not the case with this unit did NOT allow the 7th shell to go in hence the 3 stars was really let down on this and if there is some sort of trick or secret to it I wasn't aware it. Solid and sturdy unit.

This is a great addition to the 1014 shotgun works great i highly recommend

Yea engineering failed you have to disassemble the mag tube and he spring flys all over Everytime you take the gun down . Makes zero sense

Great product installed quickly much more capable firearm now.