What did you do at the range today?
I put another 300 rounds through my AR9 build. The first 600 of TUL only had one hiccup, re-rack and the stuck round chambered and fired. The 300 rounds today were Wolf Polyformance and I had 3 failure to chamber. Two chambered and fired when re-racked, one just got real short, glad it didn't go in on the second try. I need to look at other barrels with cut 9mm ramp or maybe get one cut. It don't think it will ever chamber anything other than FMJs the way it is.
The Spikes lower has/had a LRBHO in the lower. It didn't work at all during the initial build and dry fire tests. Correction, it always worked, always locked BCG back. When I got home today I replaced the bolt catch with a strike industries unit. The original spikes spring and plunger appear to be out of spec. I might reinstall the LRBHO and see if it will work now. Not a big deal but I would like a LRBHO if I can get it to work reliably.
https://uploads.tapatalk-cdn.com/201...6959d3a706.jpghttps://uploads.tapatalk-cdn.com/201...f28f2e1aac.jpg
Edit to add pics of the Spikes LRBHO.
Unit removed.
https://uploads.tapatalk-cdn.com/201...9fc5728f6d.jpg
Spring installed.
https://uploads.tapatalk-cdn.com/201...7932efb2ba.jpg
Spring and lever installed with roll pin in position.
https://uploads.tapatalk-cdn.com/201...3fed14a560.jpg
https://uploads.tapatalk-cdn.com/201...0c3b63281a.jpg
https://uploads.tapatalk-cdn.com/201...0a4730f679.jpg