Gray AR-15 Build Kits and Assemblies
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AT3™
AT3™ FF-ML Complete Match Grade AR 15 Upper – .223 Wylde 16 Inch Faxon...
AT3 16" 223 Wylde Complete Upper with M-LOK Handguard - Made to Order and Ships in 7 Days AT3 Complete Upper assemblies are Built for Accuracy and Reliability - Guaranteed....24 Options -
Magpul MOE M-LOK Furniture Kit – Stock, Carbine Handguard & Grip for AR 15
Customize the look and feel of your AR with a Magpul MOE Furniture Kit. Save 15% vs purchasing all parts individually! This furniture set contains 3 easy-to-install components - MOE...24 Options -
AT3™
AT3 SPEAR Furniture Kit – AT3 AR 15 M-LOK Handguard, Magpul MOE Stock &...
Accurize and customize your AR with an AT3 Free-Float Rail and matching Magpul furniture! Save by bundling vs purchasing the parts individually, plus free shipping. This furniture set contains 3...24 Options -
Magpul CTR Stock Kit | Furniture Kit for AR-15– CTR Stock, MOE+ Grip &...
Transform Your Rifle With The Magpul Premium Furniture Kit Save by bundling vs purchasing the parts individually! Exclusively from AT3 Tactical This Premium version of our popular, easy-to-install MOE furniture...12 Options -
Magpul MOE SL Furniture Kit | AR 15 Stock, Grip & M-LOK Handguard
Stand out from the crowd - Upgrade your AR-15 with the Magpul MOE SL™ Slim Line Furniture Kit Save over 15% vs purchasing the parts individually, plus free shipping. Exclusively...12 Options -
AT3™
AT3™ FF-ML 11.5″ Complete AR 15 Pistol Upper – .223/5.56 11.5″ Ballistic Advantage Barrel...
The AT3 11.5" Pistol Upper with SPEAR M-LOK Handguard - Made to Order and Ships in 7 Days AT3 Complete Upper assemblies are Built for Accuracy and Reliability - Guaranteed....8 Options -
AT3™
AT3™ FF-ML 10.5″ Complete AR 15 Pistol Upper – Choose Your Own 10.5 inch...
The AT3 10.5" Pistol Upper with SPEAR M-LOK Handguard - Made to Order and Ships in 7 Days AT3 Complete Upper assemblies are Built for Accuracy and Reliability - Guaranteed....16 Options -
AT3™
AT3™ FF-ML Complete Rifle AR 15 Upper – .223/5.56 16″ Ballistic Advantage Barrel –...
16 Inch Lightweight AT3 Upper with 15 Inch Handguard - Made to Order and Ships in 7 Days AT3 Complete Upper assemblies are Built for Accuracy and Reliability - Guaranteed....16 Options -
AT3™
AT3™ FF-ML 11.5 Inch Complete AR 15 Pistol Upper – .223/5.56 11.5 Inch Faxon...
AT3 11.5" Pistol Upper with Faxon Firearms Midlength Barrel - Made to Order and Ships in 7 Days AT3 Complete Upper assemblies are Built for Accuracy and Reliability - Guaranteed....8 Options -
AT3™
AT3™ FF-ML 10.5 Inch Complete PCC AR 15 Upper – 9mm 10.5 Inch Faxon...
AT3 10.5" 9mm Complete Upper - Made to Order and Ships in 7 Days AT3 Complete Upper assemblies are Built for Accuracy and Reliability - Guaranteed. Quality Where it Counts...8 Options -
AT3™
AT3™ FF-ML 16 Inch Complete AR 15 PCC Upper – 9mm 16 Inch Faxon...
AT3 16" 9mm Complete Upper with M-LOK Handguard - Made to Order and Ships in 7 Days AT3 Complete Upper assemblies are Built for Accuracy and Reliability - Guaranteed. Quality Where...8 Options -
AT3™
AT3™ FF-ML 10.5 Inch Complete AR 15 Pistol Upper – 10.5 Inch Faxon .223/5.56...
AT3 10.5" Pistol Upper with SPEAR M-LOK Handguard - Made to Order and Ships in 7 Days AT3 Complete Upper assemblies are Built for Accuracy and Reliability - Guaranteed. Quality...24 Options -
AT3™
KAK Shockwave Blade AR-15 Pistol Brace Kit – Blade, Custom Pistol Buffer Tube, Buffer,...
Item is Unavailable for Sale This kit includes everything you need to set up and add the KAK Shockwave to your AR pistol! Kit contains a black KAK Shockwave Blade,...4 Options -
AT3™
AT3 AR 15 Lower Build Kit – Magpul Stock and Grip, AT3 Lower Parts...
Finish Off Your New Rifle Lower with an Enhanced Trigger and Matching Magpul Furniture Your AR lower has some of the most critical parts you don't want to skimp on...4 Options -
AT3™
AT3™ FF-ML 10.5 Inch .300 Blackout Pistol Upper for AR-15 – 12″ M-LOK Free...
AT3 10.5" .300 BLK Pistol Upper with SPEAR M-LOK Handguard - Made to Order and Ships in 7 Days AT3 Complete Upper assemblies are Built for Accuracy and Reliability -...8 Options -
AT3™
AT3™ FF-ML 16 Inch .300 BLK Complete AR 15 Upper – .300 AAC Blackout...
The AT3 16" .300 BLK Rifle Upper with SPEAR M-LOK Handguard - Made to Order and Ships in 7 Days AT3 Complete Upper assemblies are Built for Accuracy and Reliability...8 Options -
AT3™
AT3™ Complete Rifle Kit – Magpul Lower Build Kit – .223/5.56 16 Inch Ballistic...
Instant Rifle. Just Add Lower. Don't settle for the budget-line rifle kits you're used to seeing. Get a complete assembled upper from AT3 Tactical, with a lower build kit including...16 Options -
AT3™
FF-ML 20 Inch 6.5 Grendel AR 15 Upper – 20 Inch Barrel by Faxon...
AT3 20" 6.5 Grendel Rifle Upper with SPEAR M-LOK Handguard - Made to Order and Ships in 7 Days AT3 Complete Upper assemblies are Built for Accuracy and Reliability -...8 Options
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