The test rifle that we made uses all the same parts that the rifles we are going to sell but uses parts that we can not sell. We actually ended up with 2 receivers that did not come out as nice as I would like. One will be sent to the ATFE for approval and the other will be shot to death with proof loads to determine strength and safety.

So a very basic testing rig was made to hook up to the firing tube and testing began.

The initial test showed the firing pin worked properly but it was not ejecting properly and the cases were falling back into the receiver.

We then lengthened the ejector and re-tested the rifle. The rifle fire and ejected properly. These are the fired cases after the ejector was lengthened.

This final picture shows the fluting marks on the case.

So far the tests have been successful. Then we tested for proper engagement of the secondary sear. The manually testing we did showed good engagement and the disconnector operated properly. However during actual live fire testing the secondary sear did not catch properly.

This is a video of the tests.

We should have the secondary sear problem corrected and then we will test proper magazine feed and proof the rifle

Interesting how they did this.