The 300 AAC Blackout can not only use your lower receiver but your upper as well. All that needs to be replaced are your barrel ($199) & gas block ($25).
Since the 300 AAC uses the same bolt carrier group & magazines there are 3 ways to go about this:
1) Replace the barrel & block on existing .223/5.56 receiver.
2) Purchase a new receiver ($95), barrel, gas block, gas tube ($16), & hand-guard.
3) buy a pre-made upper. DSA has them for $335 & model1sales has them for $385 starting out.
Remember, if you decide to assemble these yourself you will need several tools that are AR 15 specific.

2) Punch set
3) AR 15 combo armorer's wrench
4) Lithium grease
5) Lock tight
6) Upper receiver action block or
Upper drop in block
300 AAC Blackout Barrels
http://www.midwayusa.com/find?userSearchQuery=300+blackout
The full upper can be ordered inexpensively at:
Model1sales
http://www.model1sales.com/index.cfm?fuseaction=category.display&category_id=656&CFID=21292975&CFTOKEN=13098844
DS Arms
http://www.dsarms.com/DSA-ZM4-Forged-7075T6-A3-AR15-Upper-Receiver-300BLK---ZM4CBU300/productinfo/ZM4CBU300/
http://www.dsarms.com/DSA-ZM4-Forged-7075T6-A3-AR15-Upper-Receiver-300BLK---ZM4CBU300SS/productinfo/ZM4CBU300SS/
or Expensively at:
MidwayUSA
http://www.midwayusa.com/find?userSearchQuery=300+aac+
Advanced Armament
http://www.advanced-armament.com/
Barrel Conversion Tools:
Walmart
http://www.walmart.com/search/search-ng.do?search_query=ar-15+tools&ic=16_0&Find=Find&search_constraint=0
Brownells
http://www.brownells.com/.aspx/cid=10006/avs%7cMake_3=AR-15zz1zzM4/Products/Gunsmith-Tools-Supplies
MidwayUSA
http://www.midwayusa.com/find?userSearchQuery=ar+tools
Hi There,
ReplyDeleteThank you for sharing the knowledgeable blog with us I hope that you will post many more blog with us:-
300 AAC Blackout, SAAMI short name 300 BLK, also known as 7.62×35mm is a rifle cartridge developed in the United States for use in the M4 carbine.
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