Which Lee presses are compatible with the BP2889B Large Primer Arm?

The BP2889B is engineered to fit the Lee Classic Cast Press (SKU 90998), the Classic Turret Press (SKU 90064), and pre-2024 Breech Lock Challenger presses (SKU 90588). Please note that it is strictly incompatible with 2024-and-later updated Breech Lock Challenger models and post-2018 red base turret press redesigns.

Can I use this primer arm for both large rifle and large pistol primers?

Yes, this arm is specifically designed to handle all standard Boxer-primed cartridge cases requiring Large primers, such as .308 Winchester, .30-06, and .45 ACP. If you are reloading smaller calibres, you will need the companion BP2889A Small Primer Arm instead.

How do I install the BP2889B priming arm onto my Lee press?

Installation is quick and straightforward as a direct factory replacement part. The arm simply slips into place over the cross pin located in the vertical slot of the press ram, pivoting naturally to seat primers and deflect spent primers into your collection system.

Does this mechanical reloading accessory require any Australian electrical compliance certifications like SAA or RCM?

No electrical compliance certifications are required for the BP2889B. Weighing approximately 0.030 kg, it is a purely mechanical steel and plastic component with no powered parts, batteries, or mains electrical requirements for your reloading bench.

Large Primer Arm - Lee Precision BP2889B

The Lee Precision BP2889B Large Primer Arm Assembly (Mfg Part #: 91963 / BP2889B) is a dedicated on-press priming component designed to seat Large Rifle and Large Pistol primers during the cartridge reloading process. Weighing approximately 0.030 kg, this mechanical assembly installs directly into the vertical slot of compatible Lee press rams, pivoting on a cross-pin to press Boxer primers into cartridge cases through the base of standard shell holders as the ram is cycled. In addition to priming, it acts as a mechanical deflector during decapping operations to route spent primers directly down the ram into collection tubes.

Key Features

Large Primer Seating: Formed to seat standard Large Rifle and Large Pistol primers in calibres such as .308 Winchester, .30-06 Springfield, and .45 ACP at a capacity of one primer per press stroke.
Ram-Slot Installation: Slips into the integrated vertical slot of standard pivoting-arm Lee rams without requiring external power or specialized mounting adaptors.
Debris Deflection: Serves as an alignment guide that assists in funneling spent primers into the ram collection system during decapping strokes.
Direct Factory Replacement: Functions as a direct replacement part for missing, damaged, or worn priming assemblies on compatible legacy single-stage and turret presses.

Product Specifications

Component Type: On-press priming arm assembly
Manufacturer Part Number: 91963 / BP2889B
Weight: Approximately 0.030 kg (30 grams)
Primer Size Compatibility: Large Rifle and Large Pistol primers
Feed Capacity: Single primer manual load per stroke
Press Compatibility: Lee Classic Cast Press (SKU 90998), Lee Classic Turret Press (SKU 90064), Lee Breech Lock Challenger Press (Pre-2024 models / SKU 90588), and 4-Hole Turret / Value Turret Press Kits with red base castings manufactured prior to 2018
Power Requirements: None (manual/mechanical operation)

Who is the Lee Precision BP2889B Large Primer Arm for?

Handloaders reloading large primer calibres — Installs this 0.030 kg reloading press priming arm into compatible press rams to seat Large Rifle and Large Pistol primers on single-stage and turret reloading platforms.
Reloaders replacing worn press components — Replaces worn or lost original large primer arms with a 0.030 kg factory assembly that integrates with Lee ram slots on pre-2018 red base turret presses and pre-2024 Challenger models.

Less suitable for: Handloaders priming Small Rifle or Small Pistol cartridge cases, or those operating 2024+ redesigned Breech Lock Challenger presses and post-2018 red base turret presses, which require either a dedicated small primer arm (BP2889A) or the updated manufacturer-specific primer feed assemblies.

SKU	LE102224LP
Model #	BP2889B
Brand	Lee Precision
Shipping Weight	0.2000kg

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Lee Precision Bp2889b Large Primer Arm Assembly Large Primers

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