Drop In Mag Conversion Rem 700

[dusterdave173]

What are the best kits to add a drop magazine to a rem 700? SA I see prices all over the place --poly, metal , accept longer rounds etc
prepping a 700 for long range use 223--would like to be able to use longer rounds
Are the poly ones OK? Do you have to get the $300 plus kits? Whats the hot lick Thanks

 

[GenePoole]

For drop-in, I prefer HS Precision or Wyatt's (in that order) but I've only used AI pattern mag DBMs with .223 and those require fitting.