I've had my trusty Gen 2 G23c for about 10 years. I decided to get an after market BBl for several reasons. I shoot almost 100% reloads ( I wanted better case head support, and a tighter chamber to make my brass last longer) and sometimes I don't need/want a compensated BBL. I chose a Lone Wolf, mainly cause it was cheap and I've never heard anything bad about them. Got the lone wolf in the mail and broke down the glock for a test fitting. I dropped it in and... it didn't fit. I put a little pressure on it and "pop", it went into place. It took a little pressure to pop back out also, so I lubed it good and popped it in and out about 10 times and each time it got looser. So I installed it and racked the slide and let go about 50 times. By the time I had done that, it slid into place just like the glock BBl. The only draw back is I managed to put a scratch across the wolf logo on the BBL. NBD (PIC) I dropped a round into both BBl's and the case head support in the Lone wolf BBl was much improved. I'll post a pic of that after I finish the rest of this post. Also the chamber is much tighter. (which is what I wanted) Then I drove to my shooting range outside of town. 5 min drive MAX. There is about 2 feet of snow on the ground and I had to carry my stuff to the bench from the road. Conditions were not good, It was cold! and Windy. Winds were gusting to 20-25 MPH across the range, and I had forgotten my gloves. DOH! I fired one Magazine full out of the stock BBl at 10 yards from the bench for accuracy reference, (see pic)then I fired one mag full with the Lone wolf BBL. (pic) Also at 10 yards from the bench. These were the first 9 rounds through the BBL. Then one more Mag. (pic) Then 2 Mags quick-fire standing (pic). (to test reliability). I had to fish the brass out of the snow after each mag fired with bare hands so by the time I got to this point My hands were too cold to load a magazine. (which is why I was only loading 9-10 per mag) It wasn't enough rounds to ensure 100% reliability but I did not have any feeding or any other problems during the test run. My first test impressions are that I am 100% satisfied so far. I think the accuracy will improve as the bbl breaks in and after I develop a load for it. I was shooting 155gr Barrys plated and Bullseye powder, which is my plinking load. I noticed ZERO difference in recoil between the ported and unported BBLs, I also didn't notice a difference in noise level but i was wearing Muffs over plugs so I probably wouldn't. So far I can say I would recommend a Lone Wold .40 cal BBL to anyone who is looking.