Last I heard and understood, ANY M16 part is bad, including the hammer, trigger, disconnector, selector and sear group, along with the bolt carrier. Have the rules changed?
HB of CJ
yes this makes alot of sense.I like the 16" on an AR in 5.56. The reason being it is a light round, and if you are going to back it around you may as well have a light versitle barrel. If you were going to you a heavier round and worry more about long distance accuracy than 20" would make more sense to me. As for me, I got rid of a 20" BBL years ago in favor of a light Colt with a 16" barrel.
nothing wrong with that but id prefer to keep the ammo consolidated.5.56/.223 is accurate enough out to 600...you can always get a 6.5/whatever other different caliber upper and swap out when needed. A lot of them use the same lowers as 5.56....
FWIW the rifle gas carbines are known to have problems...at least with cheaper manufacturers.Don't forget the option of using a 16" barrel with the "full length" gas tube (the gas tube and handguard length of the original 20" barreled gun). This gives you the relatively short 16" barrel (for easier vehicle carry and/or close quarters operation) with the reliability/lower operating pressures (?) and longer sight radius of the 20" version.