SKB Question in SASS Wire Posted February 1, 2017 There were 2 levels of guns from SKB. 100 and 200, the 150 came along later which was a higher grade 100, splinter or beaver fore end. The 100 was extractors only, 150 could be either. The 200 always was an ejector gun. The 200 and 280 English straight stock had split ejectors which have to be disengaged for our sport. Pretty easy to do. ALL of the models could be ordered with engraving, silver nitride , and different fore ends. They were the poor mans answer to the BSS and were all hand fitt d and extremely well made.