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AR Receivers: 7075 T6 vs. 6061 T6 Aluminum

Posted by 80-lower on Nov 14th 2019

AR Receivers: 7075 T6 vs. 6061 T6 Aluminum
The most important part of the AR-15, the lower receiver (the firearm itself) comes in two versions: Billet (6061-T6) and forged (7075-T6) aluminum. If you're here,  you're probably goi … read more

Sig Sauer P320 80% Build Guide

Posted by 80-lower on Nov 12th 2019

Sig Sauer P320 80% Build Guide
Sig Sauer® introduced the P320 modular handgun in 2014 and it quickly became one of their most popular pistols, ever. The U.S. Military adopted this new platform (designated the XM17 and XM18) and … read more

300 Blackout vs. 300 Whisper

Posted by 80-lower on Nov 1st 2019

300 Blackout vs. 300 Whisper
Just as the differences between .223 and 5.56 NATO are hotly debated and shrouded in misinformation, the same applies to the world of the .300 family. The new and popular 300 Blackout round was offici … read more