Re: HK MK 23 SOCOM
If you really want one, go for it. You will not be disappointed. It is the single most reliable firearm I have ever owned with outstanding accuracy. Just keep the barrel o-ring lubed and it just goes and goes. There is not a custom 1911 maker out there that wouldn't give his left nut for comparable performance.
But, it is a large beast. I did use it in a training class and it was like having another carbine in transitions.
The Safariland holster was mil issue and you can find them for $50.
I have been fortunate enough to find just about every accessory for this pistol. I have German HK high tritium three dot sights designed to be useful over the suppressor. The can is a CCFA carbon fiber Brugger & Thomet, built under license way back when. I have the KAC can as well. I have two barrels, the one that US Mk23s came with and a non-SAAMI spec Euro HK barrel with a slightly tighter chamber.
The mag extensions are +4s by a guy called Doc Rak that only work on 12 rd mags for a total of 16 rounds. The flash hider is another CCFA product. The one shown is carbon steel and I have another made in titanium. They both actually make the pistol more accurate if that is possible and sound like tuning folks at the range.
The LAM was the hardest thing to find. I found one, bought it and almost beyond comprehension, managed to break it. Being back then and now I am a civilian, getting IR stuff fixed is hard to impossible. I just had it come back after years of sitting in the safe. It is huge compared to more modern gear but it is the ultimate Mk23 tidbit.
Hope you get one and enjoy it.