Zerodown mentioned: Did you materialize to acquire any problems Placing the forearm on in the Knoxx stock? Once i set it on my 500a, the forearm was an absolute bitch to acquire on. Could not even set the nut back on as there is not any space. Fascinated to discover https://highimpactrounds.com/product/mossberg-590a1-spx-12-ga-20in-8rd/