Armaspec Stainless Steel Spare Parts Kit ARM148 SS UPC 810048491216
Product Description
The Armaspec Stainless Steel Spare Parts Kit (MPN: ARM148-SS) is an essential, high-durability replacement hardware pack designed to keep AR-15 lower receivers fully operational in the field, on the range, or at the bench. Built specifically to replace small, easily lost, or high-wear internal components, this comprehensive kit features 100% corrosion-resistant stainless steel detents, pins, and springs to ensure maximum mechanical longevity under harsh firing conditions.
Every detent and pin in the ARM148-SS is precision-machined from high-grade stainless steel to resist binding, rust, and surface galling over long service intervals. The kit includes crucial small parts that frequently launch across the workshop during lower assembly or field stripping—such as pivot and takedown detents, selector springs, buffer retainers, and bolt catch roll pins. By upgrading from standard carbon steel springs to stainless steel, this kit eliminates corrosion caused by moisture traps inside receiver cavities.
Perfect as a "Lost Spring Kit" backup for armorers, a field repair staging pack for tactical range bags, or a corrosion-resistant upgrade for custom lower receiver builds, the Armaspec ARM148-SS offers total peace of mind. Backed by Armaspec's lifetime warranty, it guarantees reliable drop-in performance for standard Mil-Spec AR-15, M4, and AR-10 lower receivers.
Armorer Bench Notes & Real-World Staging Guidance:
Fitment Matrix: Fits all standard Mil-Spec AR-15, M4, M16, and AR-10/LR-308 lower receivers. Ideal for replacing worn, rusted, or missing small springs and detents during custom lower receiver assembly or routine maintenance.
- Perform a complete firearm safety check: drop the magazine, pull the charging handle rearward, lock the action open, and visually inspect the chamber to verify zero live rounds are present.
- Identify the specific missing or damaged spring/detent in your lower receiver assembly (e.g., takedown detent, safety selector spring, buffer retainer assembly).
- Clean out the target receiver cavity or channel using an armorer's pick and solvent to remove old grease, carbon, or debris.
- Select the corresponding stainless steel replacement spring or detent from the ARM148-SS kit.
- Carefully compress the spring and seat the detent, using a razor blade, block tool, or specialized clevis tool when installing front pivot detents to prevent launching components.
- Reassemble the associated receiver component (pistol grip, buffer tube, or bolt catch) and perform a dry-function test to verify smooth mechanical detent engagement.
Key Features
- 100% Stainless Steel Construction: High-grade stainless steel detents and springs resist rust, corrosion, and moisture degradation.
- Complete Small-Parts Backup Kit: Contains the most frequently lost or damaged lower receiver springs, roll pins, and detents.
- Precision-Machined Tolerances: Ensures smooth pin retention, crisp safety selector clicks, and reliable bolt catch operation.
- Ideal Armorer & Field Repair Pack: Keeps critical lower receiver components staged for emergency range repairs or workbench assemblies.
- Universal Mil-Spec Fitment: Drops seamlessly into standard forged and billet AR-15 and AR-10 lower receivers.
- Armaspec Lifetime Warranty: American-made craftsmanship backed by Armaspec's full factory warranty for long-term reliability.
Product Specifications
- Brand: Armaspec
- Model/Series: Stainless Steel Spare Parts Kit
- MPN / SKU: ARM148-SS
- UPC: 810048491216
- Platform Compatibility: Universal AR-15 / M4 / AR-10 Lower Receivers
- Kit Contents: Takedown/Pivot Detents & Springs, Safety Selector Spring & Detent, Buffer Retainer & Spring, Bolt Catch Plunger, Spring & Roll Pin, Disconnector Spring
- Material: High-Grade Stainless Steel
- Finish / Color: Natural Stainless Steel
- Weight: 1.1 oz
- Country of Origin: USA
