u/kodkrysco51

I purchased a nexus upper and bolt. The bolt does not shoot well at all with my gun. Its shooting about 1 out of every 5 tries, maybe a little worse. Very light primer strikes. However, if i drop my OEM bolt in the gun and it shoots flawlessly.

I sent my nexus bolt back to nexus and they stated it shot just fine in their gun and that my trigger was likely the culprit (i have the timney). I didnt really love this answer as the same timney trigger will shoot my OEM bolt just fine.

I got my bolt back on Monday and went to the range with my cousin who also has a nexus upper, nexus bolt and timney trigger (his setup runs fine and is basically a clone of my gun). Here is what we found:

My gun still does not shoot well at all with my nexus bolt. The ones it did fire had a lighter than normal primer strike on the empty casing.
I then put my OEM scorpion trigger back in and it still was very finicky, no improvement at all with my nexus bolt. I wanted to try this as its a much heavier trigger.
I put the OEM bolt back in and shot 20 rounds perfectly with the OEM trigger and then 20 more with my timney trigger.
I then put my cousins nexus bolt in my gun with my timney trigger and it shot 20 rounds perfectly.
The final test, we put my nexus bolt in my cousins gun (again, he also has the nexus upper and the same timney trigger) and his gun shot my bolt fine, 20 times in a row.

So im kind of at a loss. My nexus bolt worked when nexus tested it and also works in my cousins gun, but will not work in my gun with the timney trigger OR the OEM trigger. I cant say the nexus bolt is 100% at fault because it works in other guns. I cant say my gun/trigger is 100% at fault because neither trigger pack shoots the nexus bolt and both trigger packs shoot the OEM bolt or my cousins nexus bolt.

I like the scorpion platform but was nervous of the OOB issues so wanted to invest in it rather than selling it. Now I have a $400 bolt that I cant make use of. I reached out again to Nexus on Tuesday but havent got a response back yet.

Got my nexus receiver and bolt last week and was excited to get out to the range today… it won’t go bang lol. Well, it shot one round out of 15 tries maybe. You can see what it does on two of the rounds in the picture. It just barely touches the primer. The bottom most round and the on above it on the right side. These were freedom munitions hush 147 but it did the same thing with federal 115. I put the oem bolt back in and it shot no problem.

Inspecting the bolt, I don’t see an issue. The firing pin appears to come out the same as the oem bolt but clearly it’s not working correctly.

I’m going to reach out to nexus soon. I want to fully dissemble the bolt first and see if I can find any issues.

Nexus Bolt Issue Follow Up