hello all, thanks for taking time to read this. my brother bought an early model saiga 12, pre-owned, when he saw my 109, and the bolt hold open feature, he decided if ever he found one at a good price he would buy it, and just did. so, he is thinking about selling the early model saiga. question. it came without a box or manual, being used. what is its model number? i haven't measured the barrel, but, appears similar to the 109. ( pardon the lack of details, i only saw it once briefly ). thanks!