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Why do many AR barrels have a notch machined into them approximately 3/4" down the length of them? It is about .5" in width. Isnt barrel rigidity a key contributor to accuracy and if so, material removal does lower strength in that wall thickness? I cant imagine this is some type of weight...

I am tightening a barrel on my rifle and need to find a proper clamp block for doing the job so I can give it the torque it requires. There are a plethora of them out there but I am not sure I like the design and was wondering if anyone has used the type that insert into the magwell. I will be...

I have a question about barrel nut tightness. I recently had a gunsmith remove my standard free float rail from my DPMS LR308 and I added a Troy Industries TRX Battlerail. I took the rifle out to the range on last Friday and I had an issue that I wanted to ask the experts. Right as I was...

I added on a PRS myself to my AP4 and had a quick question. As I had an adjustable M4 type stock I had to buy an A2 buffer tube that was straight without the 6 position fitments milled into the tube. It is clearly longer than the "stock" stock. The castle nut was not used as the A2 stock only...

I started reloading a year ago and started out with a single stage RCBS Supreme Master Reloading kit. Great deal, quality, and (I thought) room for expansion to a progressive in time with the Piggyback -4 conversion kit. Since I have reloaded a LOT of .308 and now starting .223 I need a bulk...

I am looking at a Fort Knox safe for purchase. They sure seem stout and to be honest, what reeled me in was how slick they look. (I saw one with our second amendment written down the length of the door!!!) I want to store 10 rifles, 2 pistols, and some personal items. Before i shell out 2K...

So I bought a box of American Eagle rounds, 7.62x51, at the show this weekend just to try out--mostly because they are 168gr and I am having good results there with 168. And, to be real honest, thats all they really had in .308 at the particular booth I was strolling by at that particular time...

I could use some input regarding an issue I am having with my DPMS LR308AP4. I am a relative newbie in the AR world but have been shooting my whole life so my knowledge of the AR platform is limited--but growing rapidly!:D. I have encountered an in battery double cycle (I think) a handful...