I LIKE my Defender!
...and it's a dandy with a few accessories added! I added an ATI stock with pistol grip, a shell holder, a small lithium flashlight and a sling. The added feature with this weapon is that it'll feed & shoot Aguila MiniShells with NO modification to the elevator, unlike other shotguns. The stock gives me added control, the light is blinding & effective out to 100'+, the sling allows me to free one hand, if need be and the shell holder, with a fully-loaded gun & one in the chamber, gives me 23 rounds! This means all the rounds are nose-to nose in the shell holder. I did find, however, that the two shells on either end of the holder would work out in a "live" session, so I replaced them with a single 2-3/4 "00" shell/slug in the front & back position...seemed like the plastic "finger" on each end wasn't strong enough to hold the nose-to-nose MiniShells effectively.
Needless to say, the MiniShells are loaded to 12 ga. SAAMI specs, but have only a 20 ga. recoil. I've found that in simulated practice sessions when using these shells, I'm not as sore as when using full loads- and yes, I find them very effective in CQB situations. I'm 5'10" & 225 lbs., but I still look for all advantages in controlling my shotguns!
BTW, I got mine for $200 a few years ago & it had only been shot three times!