6-Pack Perimeter Trip Alarm, Trip Wire Alarm Device, Camping 12 Gauge Bear Deterrent, Black(6PCS)

worked great

These failed every time. Tried three of the six with multiple shells. The primer is being stuck just fine right in the middle. The spring does not appear to be strong enough for the very blunt strike pin. Grinding this to a point would probably fix this.Also the pull pin is easily thrown into the weeds as it's an open 3/4 loop. This is another poor decision. A piece of shrink wrap over the loop would stop that if you want to modify these.All in all bad execution on a basic workable design. I am going to modify them as this is not hard having the correct tools.

Great value and design. These function as well as my old ones and are easy to use and are just as loud and built as good as all my other ones

This is a very basic product. Not a lot to do, so that it is setup. I setup the product and the spring on the firing pin is not strong enough to activate the 12 gauge blank. I will order from another company.

Would not fire anything! None of them!! Worked on one got it to fire and it went to pieces! Retaining clip broke on the firing pin then it was just pieces. Truly junk!!Was not a zero star option!!

Does not work as advertised the springs are far to weak and the milling is not percise.

Not strong enough to set off a 209 primer

I had to modify them to make them work.. the firing pin is too short to hit primer so I had to modify them to make them work..