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AR-15 Calibers

Since 1999, we have built custom AR rifles with guaranteed reliability and accuracy from the best parts available. Our Wilson Combat Custom AR barrels are all machined in–house from our match-grade domestic blanks so we can ensure optimal performance.

We have an extensive list of options and customizations that can be applied to any model to create a truly one-of-a-kind rifle for you. Please contact us to speak with one of our knowledgeable customer service representatives to customize or build your dream rifle.

You can learn more about the Wilson Combat AR-15 rifle models available within a caliber by clicking on each caliber category below, or jump straight into the catalog of available in-stock AR-15 rifles available to select from below!

.204 Ruger.204 Ruger22 Nosler22 Nosler5.56x45mm NATO5.56x45mm NATO.223 Wylde.223 Wylde224 Valkyrie224 Valkyrie6mm ARC6mm ARC6.5mm Grendel6.5mm Grendel6.8mm Remington SPC6.8mm Rem SPC
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300 HAM'R300 HAM'R300 Blackout300 Blackout350 Legend350 Legend.375 SOCOM.375 SOCOM450 Bushmaster450 Bushmaster.458 SOCOM.458 SOCOM