Instapark rifle mounted green laser.
Also had this mounted on my M4 for the last year or so. I paid about $65 for it. It offers a very bright green dot that is visible in day light. If you are someone that needs a good hand held green laser, thats all this thing is good for. I've had serious......
issues keeping it zeroed in. Ended up having to use loctite on the three adjustment screws. Also, this thing is a huge pain to zero. If you are in the market for a decent hand held green laser, this may be a viable option. If you are looking for a weapon mountable laser, in my opinion, steer clear of this one.