wacki
Member
Found these two receivers:
AP15 Aero Precision AP15 AR15 Multi Caliber Lower Receiver
http://www.aimsurplus.com/acatalog/Aero_Precision_AP15_Multi_Caliber_Lower_Receiver.html
CMMG-L001 CMMG MOD4SA AR15 .223/5.56x45 Lower Receiver
http://www.aimsurplus.com/acatalog/AR_CMMG_MOD4SA_AR15_.223_5.56x45_Lower_Receiver.html
Maybe I'm being a nit but why the "multi-caliber" name? Is there a difference? I'm guessing no but I've been surprised before.
AP15 Aero Precision AP15 AR15 Multi Caliber Lower Receiver
http://www.aimsurplus.com/acatalog/Aero_Precision_AP15_Multi_Caliber_Lower_Receiver.html
CMMG-L001 CMMG MOD4SA AR15 .223/5.56x45 Lower Receiver
http://www.aimsurplus.com/acatalog/AR_CMMG_MOD4SA_AR15_.223_5.56x45_Lower_Receiver.html
Maybe I'm being a nit but why the "multi-caliber" name? Is there a difference? I'm guessing no but I've been surprised before.