08-11-2017, 11:09 PM
Thank you for the reply! I'm new to this, never had or fired a grendel but it seems like the perfect caliber to make my "improved" mk 12. Was thinking a proof research barrel or a Christensen arms( the proof seems to only come in 20 vs a Christensen arms 18) but would the 20 look crazy with my shorter handguard?

