So a brief review of this, my third Perazzi (I have owned and sold an MX12SC3 and an MX8SC3)...
If you are in the market for a great, reliable, designed-to-shoot-100K's of shells for sporting clays/FITASC and would like a gun custom made to your measurements but DON'T have the £50K+ for a London gun then consider a Perazzi.
Mine fits great, has 30" light barrels, 1/2 and 3/4 choke (well, 6 of 10 and 8 of 10 in Perazzi terms...close enough) great grain in the wood, great balance and all up comes in a tad over 8lbs.
The action is as solid as a rock and even though designed to be "re-buildable" it probably won't need that for 100K shells. The action is slim, doesn't distract me like Brownings have (personal preference I grant you) yet clearly "substantial". CNC machines from quality steel it's hand engraved an deeply blued. I wish they wouldn't gold plate the trigger but rather blued it...that's my only niggle really.
Stripping down the gun, cleaning ejectors general simple maintenance is easy as and every component is really solidly built and has a lovely finish.
The triggers on my gun are coil-sprung...my MX8 has leaf springs... some say that the leaf springs have a better "feel". Well that might be true but I cannot tell between the two in a blind test. The triggers are super smooth, no slack, really crisp let off around 3 1/2lbs and 4lbs for first/second barrel. Frankly it's better than on several of the air-guns I've owned.
Perazzi are well known for producing quality shotgun barrels and it's clear why. Convergence is dead on, they pattern a little tighter than you might expect for the purported chokings but that's not all that unusual with a fixed choke Perazzi - all of mine have! Ribs are well attached, barrels dead straight, well finished and blued. Mine weight a tad over 1500 grams which is quite light.
As a gun it's quite dynamic, light 30" barrels and at 8lbs quite light for a Sporting gun are attributes of that.
They are not cheap, but custom made with this level of quality is not going to be.
I think and therefore...... I refuse to steal someone else's quote to try to sound more erudite or profound than I actually am.