Rifle feels like smoother and less prone to wear - POF USA Roller Cam Pin With Modified Gas Key AR15 .223 RCPK223

Seems like a good solid product. installed it on Sharps XPB bolt carrier to prevent the cam wearing in a groove on my upper. When chambering a round manually with charging handle it feels smoother when you pull and havnt seen any wearing in on my new upper yet caused by it but only time will tell for sure. You will need to stake the POF gas key when replacing the one on your bolt carrier group so will need a gas key staking tool, unless you dont mind marred up bolt carrier and gas key. I chose to use a staking tool for a professional look and I like my things, especially when i invest so much in to them, looking as good as possible even though rifles are prone to get dings and scratches and worn out over time i try keeping them from wearing as fast with upgrades such as this one