My Dream Carbine:
Receiver: Sig Sauer 202 (Permits interchanging barrels of like-length, i.e.):
308-length
30-06 length
7mmMag length
375 H&H length
Bolt: Retain current 6-lug bolt of 202
Magazine: 5, 10, 15 and 20 round from M1A
Stock: 6-position stock from AR-15