lapp

Flight of the Navigator?

make sure that when re-installing the trigger group, follow what BM4robbins suggested. you always have to push the bolt release button on the side of the receiver when getting the trigger group back into place. with some practice, it should only take a matter of seconds.

Awesome, I like how the factory handle doesnt free spin, but it definitely could be larger. Your handle looks like just the ticket.

So is this a "limited rotation" design like the factory, or free-spinning like some of the other aftermarket designs?

I'd be waiting on the tax return to pay anyhow, and the deal sounds good, but I don't want to commit and tie it up if you're able to sell it in front of me. Filed taxes electronically on 2/16, but the website says it can take up to 3 weeks to receive the return.

are you going to get rid of the sidearmor rail or hang onto it? I may be interested if the price is right

Are you referring to the Mesa Tactical shotgun barrel clamp? There is no way to make up for the .050" gap between the MT mount inner diameter at .905" and the .850" outer diameter of the Benelli m4 barrel. So that leaves the Insight adapter, or the B&T adapter, both of which mount to the mag tube, which hinders disassembly. Or drop the $300 on the Sidearmor unit.

mount arrived today, and I'm disappointed. upon unpackaging, it was obvious the anodizing was on the weak side, having some marks on the inside of the mount. the screws which hold the mount together are difficult to fully seat, which isn't too bad of a thing, since they were snug when unscrewing as well. why did I have to unscrew them? because it doesn't fit. from searching around, I've found that most 870 barrels are .880" in diameter, and the m4 barrel is ~.850" in diameter. not too much of a difference, especially since there is a third mounting screw which is designed to snug the mount onto the barrel due to a relief cut. the mount was nothing but slop on the barrel, and no amount of tightening on the third screw would have snugged it down. took it off, assembled it and measured, and it has an interior diameter of .905", which after looking at the relief cut designed to tighten the mount down, I don't think there is enough even for the 870 barrel, let alone the m4 barrel. so in summary, I now have a $70 mount which is useless to me, and it will not fit the Benelli m4, so hopefully it can save others some cash.

don't tell the guys at Magpul Dynamics this, especially since every gun in their most recent Art of the Dynamic Shotgun video had a sidesaddle

I decided to order the Mesa Tactical barrel clamp with rail. Clamps onto the barrel only, which should allow for field stripping without having to remove it. Though it is marketed for the 870, I found an external dimension measurement for the 870, and compared it to the external of my m4 barrel, and they are both very close. There appears to be some slack in the mount of the Mesa Tactical clamp, so I will post my results when it arrives. I can't see spending the $350 for the Sidearmor (with sidesaddle) when I can spend $149 for the barrel clamp and the MT sidesaddle.

does something like the Insight shotgun adapter rail require removal for disassembly? I think they bolt around the mag tube as opposed to the barrel.

great guy to deal with, don't hesitate to order if you are on the fence!