{"catalog_name":"World Products","variant":"c","item":{"handle":"at3-castle-nut-for-ar-15-buffer-tubes","title":"AT3 Castle Nut for AR-15 Buffer Tubes","category":"Paintball Gun Parts & Accessories","category_name":"Paintball Gun Parts & Accessories","category_gid":"gid://shopify/TaxonomyCategory/sg-4-9-10-3","product_type":"Buffer Tube","vendor":"HR Tactical Innovations","price":"$5.99","currency_code":"USD","availability":"in_stock","inventory_quantity":16,"sku":"AT3-Castle-01","barcode":"98720034","variant_title":"Black","selected_options":{"Color":"Black"},"description":"Secure and Reliable Fit Ensure rock-solid stability for your AR-15 buffer tube and stock assembly with this high-quality steel castle nut. Designed for precise fitment and durability, this MIL-SPEC castle nut features standard armorer’s wrench cutouts for easy installation, along with staking notches for added security. Whether you’re building a new rifle, upgrading components, or replacing a worn-out nut, this affordable and rugged castle nut is a must-have. Key Features: ✔ High-Strength Steel Construction – Provides maximum durability and long-lasting performance.✔ MIL-SPEC Threading – Ensures secure compatibility with standard AR-15 buffer tubes.✔ Staking Notches for Secure Installation – Prevents loosening over time, maintaining reliability in demanding conditions.✔ Compatible with Armorer’s Wrench – Allows for hassle-free installation and removal.✔ Multiple Cerakote™ Color Options – Add a custom touch to your rifle with FDE, OD Green, Pink, Red, Blue, Burnt Bronze, Tungsten, or Titanium.✔ Black Phosphate Finish Option – Classic, corrosion-resistant finish for a sleek and tactical look.✔ Perfect for AR-15 Builds & Upgrades – Works seamlessly with all MIL-SPEC AR-15 lower receivers and buffer tubes. Available Finishes: 🎨 Customize your build with premium Cerakote™ finishes: 🔹 Black: Phosphate finish for a classic, durable look🔹 Flat Dark Earth (FDE): H-267 Magpul® Flat Dark Earth🔹 OD Green (ODG): H-232 Magpul® OD Green🔹 Pink: H-224 SIG™ Pink🔹 Red: H-167 USMC Red🔹 Blue: H-171 NRA Blue🔹 Burnt Bronze: H-148 Burnt Bronze🔹 Tungsten: H-237 Tungsten🔹 Titanium: H-170 Titanium Built for AR-15 Enthusiasts & Professionals 🔸 Ideal for rifle builders, gunsmiths, and AR-15 enthusiasts🔸 Designed for secure fitment on MIL-SPEC buffer tubes🔸 Ensures long-term durability and enhanced performance When reliability and stability matter, trust this steel castle nut to lock your buffer tube assembly in place. ✅ Upgrade your AR-15 today with a battle-tested castle nut that won’t let you down!AT3","image_url":"https://cdn.shopify.com/s/files/1/0794/0050/1271/files/at3-tactical-ar15-castle-nut-lower-receiver-part.jpg?v=1783390732","href":"/product/at3-castle-nut-for-ar-15-buffer-tubes.html","buy_url":"https://z7h0qt-f1.myshopify.com/products/at3-castle-nut-for-ar-15-buffer-tubes","buy_url_source":"shops.shop_domain + product.handle","seller_name":"z7h0qt-f1.myshopify.com","seller_url":"https://z7h0qt-f1.myshopify.com/","return_policy_url":"https://z7h0qt-f1.myshopify.com/policies/refund-policy","media":[{"url":"https://cdn.shopify.com/s/files/1/0794/0050/1271/files/at3-tactical-ar15-castle-nut-lower-receiver-part.jpg?v=1783390732","alt":null,"position":0},{"url":"https://cdn.shopify.com/s/files/1/0794/0050/1271/files/AT3-Tactical-Mil-Spec-Castle-Nut-FDE-1024x1024.jpg?v=1783390732","alt":null,"position":1},{"url":"https://cdn.shopify.com/s/files/1/0794/0050/1271/files/AT3-Tactical-Mil-Spec-Castle-Nut-OD-Green.jpg?v=1783390732","alt":null,"position":2},{"url":"https://cdn.shopify.com/s/files/1/0794/0050/1271/files/AT3-Tactical-Mil-Spec-Castle-Nut-Pink.jpg?v=1783390732","alt":null,"position":3},{"url":"https://cdn.shopify.com/s/files/1/0794/0050/1271/files/AT3-Tactical-Mil-Spec-Castle-Nut-Red.jpg?v=1783390732","alt":null,"position":4},{"url":"https://cdn.shopify.com/s/files/1/0794/0050/1271/files/AT3-Tactical-Mil-Spec-Castle-Nut-Blue.jpg?v=1783390732","alt":null,"position":5},{"url":"https://cdn.shopify.com/s/files/1/0794/0050/1271/files/AT3-Tactical-Mil-Spec-Castle-Nut-Burnt-Bronze.jpg?v=1783390733","alt":null,"position":6},{"url":"https://cdn.shopify.com/s/files/1/0794/0050/1271/files/AT3-Tactical-Mil-Spec-Castle-Nut-Tungsten.jpg?v=1783390732","alt":null,"position":7},{"url":"https://cdn.shopify.com/s/files/1/0794/0050/1271/files/AT3-Tactical-Mil-Spec-Castle-Nut-Titanium.jpg?v=1783390732","alt":null,"position":8}],"related":[{"handle":"b5-systems-vertical-m-lok-dual-angle-grip","title":"B5 Systems Vertical M-LOK Dual Angle Grip","category":"Paintball Gun Parts & Accessories","price":"$19.00","image_url":"https://cdn.shopify.com/s/files/1/0794/0050/1271/files/VFG-1575_PROFILE_RIGHT-1024x1024.png?v=1783390795","sku":"VFG-1575","href":"/product/b5-systems-vertical-m-lok-dual-angle-grip.html"},{"handle":"die-free-co-plug-grip-extension-and-storage-core","title":"Die Free Co PLUG Grip Extension and Storage Core","category":"Paintball Gun Parts & Accessories","price":"$10.80","image_url":"https://cdn.shopify.com/s/files/1/0794/0050/1271/files/DFCO_PLUG_18__49668.jpg?v=1783390787","sku":"PLUG-KFG","href":"/product/die-free-co-plug-grip-extension-and-storage-core.html"},{"handle":"die-free-co-tiger-claw-m-lok-angled-indexer","title":"Die Free Co Tiger Claw M-LOK Angled Indexer","category":"Paintball Gun Parts & Accessories","price":"$18.00","image_url":"https://cdn.shopify.com/s/files/1/0794/0050/1271/files/Tiger-Claw_1200x1200_Gray__54073.jpg?v=1783390787","sku":"TC-MLOK-GRY","href":"/product/die-free-co-tiger-claw-m-lok-angled-indexer.html"},{"handle":"magpul-moe-k2-ar-15-pistol-grip-flat-dark-earth","title":"Magpul MOE-K2 Grip AR15/M4","category":"Paintball Gun Parts & Accessories","price":"$20.99","image_url":"https://cdn.shopify.com/s/files/1/0794/0050/1271/files/MPIMAG522MCB_1_HR.jpg?v=1785303241","sku":"MAG522-MCB","href":"/product/magpul-moe-k2-ar-15-pistol-grip-flat-dark-earth.html"}]}}