{"product_id":"sig-sauer-mcx-spear-lt-complete-upper-receiver-300-blackout-9-threaded-barrel-5-8x24-thread-pitch-fits-ar-15-lower-receivers-anodized-finish-black-includes-charging-handle-and-bolt-carrier-group-3-prong-sig-suppressor-qd-muzzle","title":"Sig Sauer MCX-Spear LT |  Complete Upper Receiver |  300 Blackout |  9\" Threaded Barrel |  5\/8X24 Thread Pitch |  Fits AR-15 Lower Receivers |  Anodized Finish |  Black |  Includes Charging Handle and Bolt Carrier Group |  3-Prong\/SIG Suppressor QD Muzzle","description":"The MCX-SPEAR LT developed for the SF community is the most advanced platform of its kind. Convert any M4\/AR15 platform into a modernized folding firearm with superior reliability, durability, and accuracy. This item includes a complete 9\"\" 300BLK upper assembly. It features a removeable 3-prong flash-hider ready to accept a SIG SLH\/SLX suppressor. Receiver extension delete stock adapter so you may mount any folding or static stock or brace that uses a vertical 1913 rail system.\n\nKEY FEATURES:\nAdapts with Any M4\/AR15 Spec Lower Assembly | Dual Rod Recoil Assembly Eliminates Buffer System | Adjustable Gas System | Quick Change Barrel Design | Ambidextrous Charging Handle with Gas Deflector | Tapered Bolt Design | Compatible with SLX\/SLH Suppressors | M4 Adapter Allows for Picatinny Rail Folding Stock Capabilities","brand":"Sig Sauer","offers":[{"title":"Black \/ AR Rifles \/ Anodized","offer_id":50519102161110,"sku":"UAMCX-300B-9B-LT-BLK","price":1699.99,"currency_code":"USD","in_stock":true},{"title":"Flat Dark Earth \/ AR Rifles \/ Anodized","offer_id":50519102193878,"sku":"UAMCX-300B-9B-LT-IR","price":1699.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0004\/0635\/5980\/files\/SGUAMCX-300B-9B-LT-BLK_1.jpg?v=1790085237","url":"https:\/\/www.atomicdefense.com\/products\/sig-sauer-mcx-spear-lt-complete-upper-receiver-300-blackout-9-threaded-barrel-5-8x24-thread-pitch-fits-ar-15-lower-receivers-anodized-finish-black-includes-charging-handle-and-bolt-carrier-group-3-prong-sig-suppressor-qd-muzzle","provider":"Atomic Defense","version":"1.0","type":"link"}