Mini Harmonic Barrel stabilizer | M14 Forum The new Mini-14 Ranch Rifle 580 has a thin barrel, ejector in the bolt stop assembly, and a slightly different look to the receiver3 The new Mini-14 started with 580-xxxxx serial numbers, while older ones have a 'pencil' straight barrel and the 580's have a newer 'tapered' heavier barrel4
Newbie Mk14 EBR build - M14 Forum Here’s my Mk 14 Mod 2 replica, which uses the heavy barrel chassis You can also see the large blocky SAGE op rod guide that only fits on the heavy profile barrel