AR-15 Hi-Pro "David Tubb" - Chrome Silicone Steel - AR-15/M16 Complete Upgrade Kit in Portland, OR

"David Tubbs" brand - (High Performance/High Quality, Chrome Silicone Alloy Steel Spring Kit) for AR-15/M-16 model rifles from Carbine to Rifle lengths,all lengths. I will explain a little about the rifle, where it could REALLY use an upgrade or change and how this kit is better, costs less, lasts far longer, and is probably the Single most impor