I am very impressed with this pistol tube kit, I used it for a .300 blk pistol build. The tube and its coating are very sturdy. No issues with the threading matching up to the lower, it fit perfectly on my mil-spec lower. The spring is also better than others I have purchased. Functions well.
Overall, great quality! You cannot find a better or even similar quality buffer kit for anywhere near this price. I paid more for a lower quality kit before...I will be shopping here first from now on
Reviewed by: (Verified Buyer) Sam from North Carolina on 5/21/2020