The popular manufacturer Magpul prides itself on supplying what the consumer needs well ahead of trends, has changed its product line to offer fewer stocks that accept commercial sized tubes than Mil-Spec stocks. There is some evidence to suggest a movement toward using Mil-Spec as the industry standard. Mil-Spec buffer tubes diameter are range from 1.145-inches to 1.150-inches across and cut flat across the back while commercial type buffer tubes are from 1.163-inches to 1.173-inches wide and may be either slanted or flat on the back end. What concerns the armorer when fitting a stock is the size and end shape of the buffer tube. You may choose to work with an Mil-Spec AR-15 collapsible stock or with commercial AR-15 stock. There are two general types of AR collapsible stock. One of the most important things the AR-15 builder or owner needs to address is basic fitment. In choosing an AR stock, there are a number of considerations involved. Will you use the finished piece for competition, tactical use or home protection? Are you the only shooter who will handle this firearm? Do you want to use all Mil-Spec parts or are you comfortable with commercial adaptations? And the mother of them all: What feels good when you pull it up? Mil-Spec vs Commercial AR-15 Collapsible Stock? You can choose your stock and accessories in colors to match or contrast against your receiver. What really matters is your preference as a shooter and armorer and the intended use of the finished piece.
Some of those arguments begin like this: Which is better for tactical shooters the AR-15 fixed stock or the AR-15 collapsible stock? Who makes the better AR collapsible stock Mission First Tactical or Magpul? Those questions can bring about some really exciting, intense and spirited arguments, but they really don't mean much in the end. How Do I Pick The Right AR Buttstock for My AR-15?Ī great many of the discussions on this topic might revolve around which manufacturer or type of AR-15 stock is better. Sometimes an armorer can get so excited about the little things (Where can I trim another half-ounce off the weight of this build? Can I get that button extension in red, or does it only come in black anodized?) that we miss a really big piece of the picture. Do you need a super light competition rifle? Do you want to rely on easy to find Mil-Spec components, or will you lean toward parts that have been carefully redesigned by companies who have a special focus on one thing? Maybe you want to stick with off the rack components and accessories that are available anytime, or can you wait for that AR-15 tactical stock that’s out of stock right now? Whether you choose to modify a factory built rifle or build a new AR-15 system from the ground up, there are a lot of decisions to make about which components might best suit your needs. Things to Consider When Choosing an AR-15 Stock AR-10 / LR-308 Complete Upper Receiver Assemblies.You were right i installed the spring and detent and we are good to go. I know magpul makes a fixed version, but I want to make sure you're not trying to put a collapsible stock on a fixed tube.
Now my question is, exactly which model Magpul stock did you buy? The long tube (also referred to as a rifle length or A1 tube) only fits fixed length stocks. That nipple is what holds in the buffer and spring. The nipple at the top of the detent should still be exposed. While holding the detent in with your finger, screw the buffer tube in till the lip of the buffer tube just passes the edge of the detent. These two parts drop in the hole at te end of the threads where the buffer tube screws in. Had you bought a complete "Lower Parts Kit" these parts would have been part of that package. From the looks of it, you're missing a buffer detent and spring.