ðɪs ɐlˈaʊz ðə tˈɑːp ʌvðə ɹᵻsˈiːvɚ təbi ɡɹˈuːvd fɔːɹ skˈoʊp mˈaʊntɪŋ ænd kˈiːps spˈɛnt bɹˈæs fɹʌm hˈɪɾɪŋ ðə ʃˈuːɾɚz fˈeɪs.
This allows the top of the receiver to be grooved for scope mounting and keeps spent brass from hitting the shooter's face.