Last couple of years I've been messing about with 1911 projects, and the latest has just come together. I used a heavily modified and lightened 3-3/4" slide and bull-barrel from safari Arms. That took a lot of work; I had to fit the barrel and fuss with it quite a bit; their bull-barrel design was frankly not very good. I also made custom sights from aircraft aluminum. The blocky rear sight is designed to double as a charging handle, so it has 40 lpi. checkering front and rear. I had to make the front sight a staked sight; there wasn't enough metal left on top to cut a dovetail.
The frame was from a TISAS Duty 2 .45, and the internals are still original, though I have done some trigger-work. I blended the flat mainspring housing to the frame, then checkered it, the front of the grip-frame and under the trigger-guard. I also increased and blended the undercut of the trigger-guard, and modified the grip safety for a higher grip.
After a decent amount of reliability testing I'll re-coat the gun with GunKote. The gun fits tight to my hand and the checkering under the trigger-guard really locks my off-hand into the grip. The current grips, BTW, are stock TISAS units. They're plastic, but pretty solid and work well. I'll probably make some hand-checkered hardwood grips to replace them at some point, but they do quite nicely for now.
In test-firing today it sucked up 195gr. LSWCs and Speer 200gr. 'Flying Ashtray' JHPs without a bobble; not surprising as un-fired cases can be hand-cycled from the magazine. In what I can only attribute to divine intervention the sights were dead-on. Recoil is stiff, as you might guess, but the low reciprocating mass of the slide has the gun back on target so fast you don't really notice it when you are focused. This is a seriously fast-shooting gun.
This target was shot at 7-yards at a pace a bit faster than 1 shot/second.
This was a string of double-taps at 5-yards.
I've become a big fan of 1911s and 2011s in 9mm, but this .45 lays down the hits just as quickly, and I don't really feel worried that it packs one less round. While I am transitioning to a tricked-out CZ P-01 for carry I don't feel at all under-armed with this little beast!