There are pluses and minuses to internal box mag's...you only have to lose your detachable box mag once to experience the biggest advantage of the internal mag...that being said, I'm like you and prefer a box mag...even though I have been stuck on a hunt with what ended up as a single shot rifle due to loss of a mag. Fortunately the mag was ultimately located when cleaning the truck out after returning from the hunt in the back seat under a ton of crap....saving me $75.00! I eventually bought a spare to avert such future disasters...

With this in mind, I recommend you purchase a spare mag to have...as you won't be able to buy one when you need it most....in the woods!

Happy hunting!