One hand rapid fire on your longstrike is now a reality. In the past, priming with one hand on a longstrike with a spring upgrade may result in a damaged bolt sled. Two hand primes are possible with both hands on both side of the priming. This is not only slow but also tedious. Xplorer has created the "top-cover" style rapid fire grip for the longstrike to alleviate this issue.
* Some irreversible trimming of the shell is required for this installation. Though it is unnecessary to open your blaster for this installation, you will be required to take apart the stock primig bars. Make sure you have the means to do so before attempting this installation.
How it works video link-
*please do not try this at home
** Kit no longer available.
Here is a Video review by the good people at Tactical Tag