I have a couple of quick questions about uppers:
1. Is an upper with M4 feed ramps compatible with this mid-length barrel: https://www.del-ton.com/DTI-Del-Ton-Inc-AR-15-16-Mid-Length-Pre-Ban-Ba-p/bl1058a.htm
2. This flat top upper WILL have a way to mount rear sights on it, right? https://www.del-ton.com/AR-15-Upper-p/ur1022.htm
1. Is an upper with M4 feed ramps compatible with this mid-length barrel: https://www.del-ton.com/DTI-Del-Ton-Inc-AR-15-16-Mid-Length-Pre-Ban-Ba-p/bl1058a.htm
2. This flat top upper WILL have a way to mount rear sights on it, right? https://www.del-ton.com/AR-15-Upper-p/ur1022.htm