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#UPPER RIFLE KITS SERIAL#

Many companies selling barreled upper receivers don’t include the bolt carrier group with the kit. When you shop for an upper build kit, pay particular attention to what the kit includes. Assembled Uppers (AR-15 upper build kit) – Bolt Carriers and Barrels

#UPPER RIFLE KITS SERIAL#

The lower receiver has the serial number, and the purchase requires a licensed firearms dealer. The lower receiver consists of the trigger control group, the buffer tube, spring assembly, and the safety. The upper is unserialized and can be purchased easily. The upper assembly consists of the barrel, the upper receiver, and the bolt carrier group. You can find these fully unassembled to complete operational parts that simply need fitting together and the take-down pins closed.Īr-15’s have an upper and lower assembly. Our suggestion is to purchase a build kit. You might save a bit of money, but the reliability of your rifle may suffer. However, if this is your first build, we advise against trying to assemble an AR-15 rifle by purchasing individual parts.

Kits, Or Assembled Sections – If you are ambitious, you can certainly start buying individual parts. 223/5.56 is the caliber we will focus on for this article.

Choose a caliber – The caliber choices in an AR-15 platform are almost as broad as the accessories and styles.

If you want one of the variants that require a federal tax stamp, you must have your paperwork in order before you start assembling the parts to the final working rifle.

Decide on your rifle style – Knowing what you want your AR-15 to look like at the end of your build will keep you focused on the style and type of kit you want to purchase.

Otherwise, you may find yourself spending much more than you anticipate on your parts as you shop. A budget for your build will help you keep things from getting out of hand.

Establish a budget – Before you do anything else, work on your budget.