Troy 223 / 5.56. Barrel 1-7 twist

Like new Troy 223 barrel with 1-7 twist. 
Barrel is 16 1/2” inches long.  Only fired 40 rds through barrel.  Troy barrels are marked 223 for Canadian market but are capable of firing 5.56 mm from their website. 
EMT plus 25$ shipping in Canada.