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 Build sheet / How to piece together an AR
RuggedExposure  [Member]
11/29/2010 5:42:20 PM EST
Here is a build sheet I prepared for my brother in law, thought it would be helpful to some on here with questions.
Feel free to comment or add.
Granted this sheet is assuming you have an AR rifle lower to start your build

The first thing you will want to decide is what kind of rifle you want to build. Here are some various types:

Varmint / Sniper -


Assault / Combat –



CQC / SBR –


SPR (Special Purpose Rifle) -


Once you have an idea in mind for what you want to build then you need to create a build sheet. To go in sequence for ordering you should order the items from the first group, then the second:

1st group:
Upper Receiver
Upper Receiver Parts kit
LPK (Lower Parts Kit)
Barrel
Stock
BCG (Bolt Carrier Group)

2nd group:
Rails / Hand Guard
Gas Block
Gas Tube
Charging Handle

Here is some info on various calibers you can choose. Keep in mind that .223/5.56 will always be more available and allow more selections for choosing parts:
5.56
6.5 Grendel
6.8 SPC
7.62x39mm
5.56x39mm

Part websites
www.Brownells.com
www.Model1Sales.com
www.MidwayUSA.com
www.SpikesTactical.com
www.Magpul.com
www.MidWestIndustriesInc.com
www.BravoCompanyUSA.com
www.Stagarms.com
www.DPMSInc.com
www.Bushmaster.com
www.RockRiverArms.com
www.Noveskerifleworks.com
www.RainierArms.com
www.lewismachine.net


Abbreviations
http://www.ar15.com/forums/topic.html?b=1&f=3&t=560217

Difference between Mil-Spec and Commercial Buffer Tubes/Stocks
http://www.ar15fornoobs.com/mil-spec-vs-commercial-spec-buffer-tubes


Upper receivers
Midway USA http://www.midwayusa.com/browse/BrowseProducts.aspx?pageNum=1&tabId=8&categoryId=17086&categoryString=649***20766***8807***11619***

Rock River Arms
http://www.rockriverarms.com/index.cfm?fuseaction=category.display&category_id=279

Bushmaster
http://www.bushmaster.com/products.asp?cat=601

Stag Arms
http://www.stagarms.com/index.php?cPath=17

Model 1 Sales
http://www.model1sales.com/index.cfm?fuseaction=category.display&category_id=415


Upper receiver parts kit
Stag Arms
http://www.stagarms.com/product_info.php?cPath=17&products_id=259

PK Firearms
http://www.pkfirearms.com/A2A3_Upper_Small_Parts/30/c


Barrels
Stag Arms
http://www.stagarms.com/index.php?cPath=15_40

Rock River Arms
http://www.rockriverarms.com/index.cfm?fuseaction=category.display&category_ID=201

Noveske
http://noveskerifleworks.com/cgi-bin/imcart/display.cgi?cat=158

Bushmaster
http://www.bushmaster.com/products.asp?cat=7

Model 1 Sales
http://www.model1sales.com/index.cfm?fuseaction=category.display&category_ID=106

Midway USA
http://www.midwayusa.com/browse/BrowseProducts.aspx?pageNum=1&tabId=8&categoryId=11624&categoryString=649***20766***8807***11619***

Rainier Arms
http://www.rainierarms.com/?page=shop/browse&category=ar15/m16_barrels


Hand guards / Free Float Rails
Midwest Industries
http://www.midwestindustriesinc.com/index.cfm?fuseaction=category.display&category_id=149

Daniel Defense
http://danieldefense.com/rail-systems.html

Troy Industries
http://troyind.com/battlerails/trx-battlerails

Spike’s Tactical
http://www.spikestactical.com/z/index.php?main_page=index&cPath=78_100_56


Gas Blocks
Midway USA
http://www.midwayusa.com/browse/BrowseProducts.aspx?pageNum=1&tabId=8&categoryId=11682&categoryString=649***20766***8807***11619***

Rock River Arms
http://www.rockriverarms.com/index.cfm?fuseaction=category.display&category_id=375

Midwest Industries
http://www.midwestindustriesinc.com/index.cfm?fuseaction=category.display&category_id=100

Noveske
http://noveskerifleworks.com/cgi-bin/imcart/display.cgi?cat=155

Model 1 Sales
http://www.model1sales.com/index.cfm?fuseaction=category.display&category_id=408

Charging Handles
Model 1 Sales
http://www.model1sales.com/index.cfm?fuseaction=category.display&category_id=418

Midway USA
http://www.midwayusa.com/browse/BrowseProducts.aspx?pageNum=1&tabId=8&categoryId=15317&categoryString=649***20766***8807***11619***

Rock River Arms
http://www.rockriverarms.com/index.cfm?fuseaction=category.display&category_id=376&CFID=108678091&CFTOKEN=28316290&jsessionid=f03079aded2e586d156e


Bolt / BCG (Bolt Carrier Group)
Rock River Arms
http://www.rockriverarms.com/index.cfm?fuseaction=category.display&category_id=377&CFID=108678968&CFTOKEN=57543380&jsessionid=f03079aded2e586d156e

Noveske
http://noveskerifleworks.com/cgi-bin/imcart/display.cgi?item_id=556bcg&cat=164&page=1&search=&since=&status

Rainier Arms
http://www.rainierarms.com/?page=shop/browse&category=ar15/m16_replacementparts-upper_boltcarrierassemblies

Stag Arms
http://www.stagarms.com/index.php?cPath=16_25


LPK (Lower Parts Kit)
Rainier Arms
http://www.rainierarms.com/?page=shop/browse&category=ar15/m16_replacementparts-lower_lowerpartskits

Midway USA
http://www.midwayusa.com/browse/BrowseProducts.aspx?pageNum=1&tabId=8&categoryId=15324&categoryString=649***20766***8807***11619***

Model 1 Sales
http://www.model1sales.com/index.cfm?fuseaction=category.display&category_id=431


Grips
Midway USA
http://www.midwayusa.com/browse/BrowseProducts.aspx?pageNum=1&tabId=8&categoryId=17060&categoryString=649***20766***8807***11619***

Magpul
http://store.magpul.com/product/MAG050/40

Rainier Arms
http://www.rainierarms.com/?page=shop/browse&category=ar15/m16_grips_pistolgrips


Stocks
Midway USA
http://www.midwayusa.com/browse/BrowseProducts.aspx?pageNum=1&tabId=8&categoryId=11623&categoryString=649***20766***8807***11619***

Magpul
http://store.magpul.com/prod_detail_list/4

DPMS – A2 style
http://www.midwayusa.com/viewProduct/?productNumber=971830

Spike’s Tactical
http://www.spikestactical.com/z/index.php?main_page=index&cPath=78_36

Model 1 Sales
http://www.model1sales.com/index.cfm?fuseaction=category.display&category_id=464


Magazines
Midwest Industries
http://www.midwayusa.com/browse/BrowseProducts.aspx?pageNum=1&tabId=4&categoryId=10192&categoryString=655***687***11341***12532***

Magpul
http://store.magpul.com/prod_detail_list/2
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