What is an Upper Receiver? [The History & Different Types]
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What is an Upper Receiver? [The History & Different Types]

If you’re new to the world of AR-15s and firearms, there’s a lot of terminology to become accustomed to. One of those keywords you’ll hear a lot of talk about is the upper receiver. The quality of an AR-15’s upper receiver is integral to its function, accuracy, and modularity, which ensures the firearm’s reliability in…

Upgrade Your AR-15: 10 Drop-In Triggers Worth Considering
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Upgrade Your AR-15: 10 Drop-In Triggers Worth Considering

Are you in the market to update your AR’s standard firing group with a drop-in trigger, but you’re unsure which of the available variants is right for your rifle and shooting style? We’ve got you covered. We will provide you with a detailed breakdown of each drop-in variant to better help you confidently pull the…

The 7 Best AR-15 Barrels to Upgrade Your Rifle in 2024

The 7 Best AR-15 Barrels to Upgrade Your Rifle in 2024

Are you planning a ground-floor build of an AR or looking to upgrade your barrel, but you’re not sure which make and model to go with? At CAT Outdoors, we’ve tested our fair share of AR rifle tech. When it comes to AR-15 barrels, we’ve tried everything from match and tactical to precision and pistol-caliber….

The 9 Best AR-15 Complete Upper Receivers for 2024: An In-Depth Buyers Guide
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The 9 Best AR-15 Complete Upper Receivers for 2024: An In-Depth Buyers Guide

Are you in search of the best AR-15 complete upper receivers for your AR build, but you’re unsure about which type to mount on your weapon? Looking for another upper to swap in on occasion? Do you want to find another upper to add to your arsenal because, well, guns? After testing and reviewing dozens…

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