Quick answer: Three quotes for one drawing often differ by a fifth, and the gap sits in the boundaries: tooling inside or outside the unit rate, pallets counted or not, sample approval inside the lead time. Fix those three and the numbers compare.

Table of contents

  • The Six Lines a Firearm Storage Case Quote Must Show
  • Amortising the Mould Cost
  • Negotiating MOQ Down to 300
  • Six Lead-Time Milestones
  • Incoming Inspection and the Handover Sheet
  • FAQ

1. The Six Lines a Firearm Storage Case Quote Must Show

One drawing, three quotes, eighteen per cent apart. Ask every supplier to break the price into the same six lines, because a firearm storage case quoted as a lump sum hides where the money sits.

Cost lineShareBasis
Moulding52–58%Resin plus machine time
Hardware12–16%Per set
Insert9–13%Foam area, density
Marking3–5%Print passes
Packing4–6%Domestic or export
Testing2–4%Per item

For a rotomoulded body with a 1020 × 360 × 140 mm cavity, 5.6 kg at 11.5 CNY a kilo puts resin near 64 CNY; machine time at 280 CNY an hour, two parts every 22 minutes, adds 51. That 115 CNY is the floor of the line.

2. Amortising the Mould Cost

Tooling is where these talks go soft. A rotomould of this size costs about 68,000 CNY with texture, the injection equivalent 152,000, so keep it on its own line. Per unit it adds 227 CNY at 300 pieces, 85 at 800, 34 at 2,000; the injection tool adds 507, 190 and 76.

Firearm Storage Case: tan case on a workshop bench, one latch right of the handle
Firearm Storage Case: tan case on a workshop bench, one latch right of the handle

Add an 8 per cent reserve, since a rotomould is refurbished every 3,000 parts at about 6 per cent of its price. The tool belongs to the buyer once paid; two free modifications, then 3,200 CNY each.

3. Negotiating MOQ Down to 300

MOQ falls out of three constraints: resin minimum, machine batch, hardware pack. Natural colour starts at 300 units because a colour change wastes 2.5 kg of powder and 25 minutes of cleaning; a specified colour goes to 500.

Hardware is the second gate. Catalogue latches start at 1,000 sets, custom die-cast at 800, a gap of 3.5 CNY a set, so at 300 units a machined keeper saves about 11,000 CNY of tooling.

Pool colours across projects, take 300 now and the rest in 90 days, or hold 200 on consignment.

4. Six Lead-Time Milestones

Forty-five days sounds generous on a calendar. Six milestones run from drawing freeze to shipment; three days lost at any one leaves the last with no reserve.

Firearm Storage Case: olive-green long case on a picnic table, two metal latches, scuffs
Firearm Storage Case: olive-green long case on a picnic table, two metal latches, scuffs
MilestoneDaysDeliverable
Drawing freeze1–33D file, cutting drawing
Mould build4–18Steel certificate, photos
First shot19–243 samples, first-article record
Sample approval25–33Signed sample, change list
Production34–41Daily report, 120 units a day
Inspection, handover42–45Sampling record, packing list

The critical path runs through the mould: fifteen days to first shot is normal, and uneven walls cost another six to nine. Cap two modifications at seven days each, then 800 CNY a day.

Production follows capacity: two shifts, two parts a cycle, 22 minutes, 120 units a day, so 800 units take seven days.

5. Incoming Inspection and the Handover Sheet

Inspection gets skipped on delivery day. Sample a firearm storage case at 5 per cent per pallet, never under 8 units across 3 pallets; read wall thickness at four mid-wall points, minimum above 4.0 mm; pull a latch to 420 N for ten seconds; freeze two units at minus 20 degrees, then drop them from 1.2 m onto six faces.

The handover sheet turns readings into a record, with copies for buyer, supplier and warehouse.

ColumnFilled byWorth in a dispute
Batch and cavitySupplierNarrows the problem
Quantity, palletsBuyerCatches short shipment
Sampled, failedBuyerDecides the batch
Minimum wallBuyerEvidence of resin saving
Latch pull-offBuyerBasis for a claim
DispositionBothRelease or return

Add a clock: cause and countermeasure in 48 hours, rework in seven days, and 12 units if one cavity repeats a defect.

Conclusion

Procurement of a firearm storage case comes down to three boundaries: a quote split into six lines, tooling spread across the first order, a lead time cut into six milestones. Put the numbers in the contract annex, and a firearm storage case order stops being a haggle over the total.

This article discusses only the container (case body) side of specifications and design intent, and does not cover any handling, loading or use of the contents.

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