With all of the recent chamber support threads lately, I thought I would post pics of my barrels. Sorry for any blurryness. With my phone camera, close-up shots is a compromise between focusing correctly or getting too much flash glare. Anyway, here they are: The first photo with four barrels is (from left to right) a KKM 10mm, Stock Glock G20 10mm, KKM 10mm->.40 S&W Conversion, KKM 10mm->.357 Sig Conversion. These are for my G20. The second photo with two barrels is (from left to right) a KKM 10mm, Stock G29 10mm. These are for my G29 The third photo with one barrel is a LWD 10mm->9x25 Dillon for my G20. You can see differences in feed-ramp intrusion. The stock Glock barrels shown in these pics are both Gen3 (2011). I have no first-hand knowledge, but I have been told that Glock has made improvements to the "barrel support" through the generations. I assume if I had a Gen2 and made the same pics, the feed-ramp intrusion from the stock Glock barrels would be more pronounced. This post is not directed at anyone in particular and no point is trying to be made. Just offering up information for those that might find it useful.