I only have one Knight, a Disc Extreme MH SS, one of the Fin,Fur, and Feather made up guns. It rapididly became one of my favorite ML's. I was impressed with its simplicity, strength, not to mention that the thing can shoot. Weather is no problem for this gun as it has seen some really miserable stuff here in Northern Idaho and it just keeps on functioning.
It came with a black synthetic stock, a stock I should mention it was well fit to the barreled action and a stock that was very firm, the forearm does not flex. Even the butt portion is solid it is not hollow. That original stock has been replaced with a thumbhole version. The only problem I have had is the Knights have a long LOP for me - so I have cut the LOP down.
I do use the FPJ breech plug and really I find I like it. I have a NFPJ but have never installed it. Blowback, well if I wasn't such a cheap SOG, blowback would be minimal with NEW plastic jackets - but since I re-use these jackets over and over at the range I do get my share of blowback. Because of this I fashioned a flash cover for the scope which works very well. Here is a picture, today a year or so later from when this picture was taken - the black electricians tape has been replaced with a much more fashionable black plastic slip ties....