Rosco/Sage Dynamics K9 12.5 barrel for about $146 shipped with coupon code overstock
https://ar15discounts.com/products/...brid-17-twist-black-nitride-midlength-barrel/
Silencerco ASR muzzle brake in 6.5 is being discounted and discontinued. While a bit bigger bore than a 5.56 specific one, once the can is on it won't make a bit of difference and saves about $30
https://silencerco.com/shop/asr-muzzle-brake/
https://ar15discounts.com/products/...brid-17-twist-black-nitride-midlength-barrel/
Silencerco ASR muzzle brake in 6.5 is being discounted and discontinued. While a bit bigger bore than a 5.56 specific one, once the can is on it won't make a bit of difference and saves about $30
https://silencerco.com/shop/asr-muzzle-brake/