ArmaLite AR-10 B-Series Gen II Detachable Magazine - 25-Round Capacity, .308 Win / .243 Win, Heavy-Gauge Parkerized Steel Body, Black Finish - 10607003
Product Description
Equipping a classic large-bore precision rifle platform requires a specialized feeding system engineered to match distinct legacy receiver patterns. Traditional battle rifles built on proprietary dimensions will bind or experience severe parsing jams if forced to feed from universal modern polymer clips, ruining your downrange consistency on your workbench. The **ArmaLite® AR-10 B-Series Gen II 25-Round Magazine (10607003)** completely flatlines these feeding vulnerabilities. It delivers a factory-original, heavy-wall steel engine optimized precisely for B-pattern rifle variants.
Proudly manufactured to professional duty standards by ArmaLite, this high-capacity magazine is stamped from **heavy-gauge carbon steel sheet housing panels** that easily resist side-impact crushing. The unibody metal frame is treated with a mil-spec **matte black zinc phosphate (Parkerized) finish** to prevent tracking rust and hold lubrication layers under intense field heat. Inside, a specialized heavy-duty spring controls a smooth multi-axis anti-tilt follower, maintaining an exact center-line presentation angle for thick bottleneck rifle cartridges as they pass the reinforced steel feed lips.
Outfitted with a traditional removable steel floorplate for quick internal cleaning and detailed inspection, this turn-key utility asset upgrades your large-caliber tactical infrastructure directly from your workbench.
*Armorer Bench Notes & Real-World Staging Guidance: The ArmaLite 10607003 magazine unit arrives pre-assembled and workspace ready within factory original poly skin tracking wraps. PROPRIETARY AR-10 B-SERIES LUG INTERFACE MATRIX: This specific magazine is engineered natively, strictly, and exclusively to lock into **ArmaLite AR-10 "B-Series" receiver chassis lines (which utilize legacy modified M14-style magazine tracking grooves)**. *Receiver Interface Calibration:* It drops cleanly into models like the **AR-10B, AR-10A2, AR-10A4, and AR-10 SuperSASS B-Series variants** on your bench. System Framework Exclusion Warning: This hardware **will not fit modern industry-standard SR-25 / DPMS Pattern / ArmaLite "A-Series" lower receivers**, as those configurations deploy a completely different straight-back locking block path. Cartridge Versatility Scale: The internal channel geometry cycles both heavy-hitting **.308 Winchester (7.62x51mm NATO)** duty ammunition and high-velocity **.243 Winchester** hunting cartridges flawlessly downrange. Armorer Workbench Custom Staging Sequence: 1. Visually and physically confirm your host rifle platform is completely clear of live ammunition, the magazine well is empty, and the bolt assembly is locked open safely. 2. When loading high-tension spring coils, use steady downward thumb pressure to push cartridges straight down from the top center rather than sliding them from the front tip. 3. Tap the rear vertical spine of the steel housing lightly against your palm during cartridge loading to settle case rims flat against the steel inner guidance lanes. 4. Clean the external Parkerized surface with a dry cloth treated with light gun oil; never fill the inner spring body with thick wet grease, as sticky residues attract loose unburnt powder grit and cause follower drag downrange.*
Key Features
- Authentic ArmaLite Factory OEM: Sourced directly from ArmaLite's original production lines to guarantee authentic geometric alignment, rigid dimensions, and zero receiver wobble.
- Heavy-Gauge Stamped Steel Body: Stamped from premium carbon steel sheets to provide exceptional crush resistance that easily outperforms standard polymer shells.
- Proprietary B-Series Lug Profile: Features the specialized side indexing window configurations required for positive latch capture inside classic AR-10B receivers.
- Mil-Spec Zinc Phosphate Finish: Protected by a deep, porous matte black Parkerized jacket that blocks field humidity corrosion and stays easy to grasp.
- Advanced Anti-Tilt Visual Follower: Outfitted with a precision-molded internal tracking follower that stops nose-diving jams and keeps cartridge presentation smooth.
- High-Volume 25-Round Payload: Extends your available precision staging capacity to a full 25 rounds, ideal for sustained target engagement or defense loops off the bench.
Product Specifications
- Brand: ArmaLite® Inc. (Phoenix, Arizona)
- Model Line: Gen II High-Performance Large-Bore Detachable Rifle Feeding Systems
- MPN/SKU Code: 10607003 (25-Round B-Series Base Variant SKU)
- UPC Code Profile: 651984085196
- Ammunition Caliber Match: .308 Winchester / 7.62x51mm NATO & Back-Compatible .243 Winchester
- Magazine Capacity Tier: 25 Rounds High-Capacity Extended Rifle Staging Deck
- Receiver System Compatibility: ArmaLite AR-10 B-Series Lower Receivers Natively (Modified M14 Attachment Grooves)
- Body Shell Material Base: Premium Heat-Treated Stamped Carbon Steel Sheet Housing Block
- Exterior Surface Dressing: Mil-Spec Matte Black Zinc Phosphate (Parkerized) Anti-Wear Armor
- Spring Component Core: High-Memory Tempered Carbon Steel Progressive Coil Spring Wire
- Follower Profile Class: Heavy-Duty Multi-Axis Anti-Tilt Thermal Polymer Tracking Block
- Floorplate Configuration: Traditional Removable Wrap-Around Heavy Steel Base Plate
- Side Auditing System: Clean Solid Ribbed Steel Sidewall Formatting with Stamped Calibration Grooves
- Packaging Format Class: Factory Original Sealed Poly Protective Envelope Wrap with Barcode Tracking Cards
- Product Type Category: Rifle Components / Large-Bore Magazines & Heavy Battle Rifle Feeding Blocks
- Overall Unit Visual Length: ~7.90 Inches (~200.6 mm Linear Steel Body Profile Dimensions)
- Net Component Module Mass: ~10.40 Ounces (~294.8 Grams High-Strength Solid Steel Empty Weight)
- Global Quality Certifications: Built strictly to Original ArmaLite Technical Operations Specifications
- Warranty Tracking Protection: Fully Backed by ArmaLite Factory Limited Lifetime Materials Cover
