After eight years of anticipation, the Bushmaster Unicorn, also known as the ACR caliber conversion, has finally hit the market. This caliber conversion system for the ACR, a platform that offers fully ambidextrous controls, improved ergonomics, an ultra reliable gas -piston operating system, and tool-less configuration and caliber adaptability, is promised to be the first of many caliber options. For now however, these conversions will be offered in .450 Bushmaster, and 6.8 Rem. SPC II. For a complete list of the options now available, please see the chart below:
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Product Specifications |
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Product |
Order # |
Barrel |
Magazine Capacity |
2018 MSRP |
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16” .450 Bushmaster ACR Conversion |
90023 |
16” FNC Treated 4150 CMV, 1:24” |
5 Round Polymer |
$699 |
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18.5” .450 Bushmaster ACR Conversion |
90024 |
18.5” FNC Treated 4150 CMV, 1:24” twist |
5 Round Polymer |
$699 |
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16” 6.8 Rem. SPC II ACR Conversion |
90028 |
16” FNC Treated 4150 CMV, 1:11” twist |
25 Round |
$699 |
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