Mesa sidesaddle on an M-4 yay or nay?

[Narkcop]

I have heard of issues with a Mesa sidesaddle on the Benelli M-4. Anyone using one? Are they good or do they cause problems?

Edited June 22, 2012 by Narkcop
mispelling

[benelliwerkes]

I use the Mesa sidesaddles on some of my guns.....I use the SideArmor sidesaddle's on the Benelli's; the SideArmor has a ball bearing detent to impose tension on the cartridge for retention, whereas the Mesa has a rubber insert to impose friction for cartridge retainer. Both are billet aluminum construction. The SideArmor is the benchmark in my opinion for what it's worth.

 

Many times, the "issues" with Mesa sidesaddles, and others that use a receiver cross bolt / ejector screw substitution(s) for a trigger group retaining pins, is that the end-user tightens the screws too tight!! which interferes (i.e. compresses the sides of the receiver) with the smooth mechanical action slide bars on pump guns / and the movement of the bolt group on semi-autos; properly installed / tensioned, they should work fine.

 

Here's some Mesa applications on a Rem 870 SBS & Mossberg 590A1 SBS:

 

Edited June 22, 2012 by benelliwerkes

[Narkcop]

Man I dig that 870!!!!

[sib1948]

I have used the Mesa sidesaddle on my M4 for well over a year. The only issue, if you don't use the shells from time to time when shooting, they can become pretty stuck. Gun functions flawlessly with it.

[Unobtanium]

BTDT, Nay. Heavy and likely as not to strip the threads out of the receiver.

[BilleeDee]

What is BTDT?