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Radian Weapons R0435 Builder Kit Radian Black AX556 Ambi Lower 8.50" Handgaurd includes most lower parts. This AR-15 receiver builder kit includes: 1x Billet Upper Receiver with Dust Cover, Anti-Rotation Pin & Lightweight Forward Assist Installed; 1x Hand Guard featuring the Magpul M-LOK Modular Attachment Interface; 1x Radian A-DAC 15 Lower Receiver. Ambidextrous components include 1x Raptor-SD Ambidextrous Charging Handle, 1x Radian Talon 45/90 Ambidextrous Safety Selector, 1x Ambidextrous Bolt Catch & Release, and 1x Ambidextrous Magazine Release. The kit also provides 1x Enhanced Takedown Pin Set, 1x Aluminum Barrel Nut, 1x Barrel Nut Wrench, and 4x Hand Guard Cross Bolts, Washers & Nuts. The set comes in a sleek Radian Grey color. Key specs list Caliber/Gauge as 5.56x45. Action noted as Bolt Action in the included spec sheet. Manufacturer is Radian Weapons; SKU LNG-RADN-R0435; Mfg. Part Number R0435; UPC 817093024185.
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A comprehensive overview of every major component in an AR-15 build—including what's inside bolt carrier groups and parts kits—organized by assembly for new builders.
12 min read
Guide
A neutral guide to component strategies for left-handed shooters, left-eye dominant right-handed shooters, and those managing eye/hand dominance mismatches. Covers ambi uppers, charging handles, gas system tuning, and real-world tradeoffs.
6 min read