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ATA 300 Category I Flight-rated construction
Made in LA Los Angeles, CA
Built for the kit Accessories, AKS, transport state
Rental-house fleet Standardized, re-orderable, engraved
Trusted 100+ Years Protecting gear for generations

MasterBuilt Primes (4-Slot vertica)

Model 3721-4

Innerspace Cases

$849.99
Built to Order Ships in 14-21 Business Days
Injection Molded
Shell
Pelican 1660
Construction
Injection Molded
Protection
ATA 300 Category I
Made
North Hollywood, California
Standard Build Black case · matching lid · nickel hardware · twist latches · black foam

One click sets the house-standard finish. Fit and interior don’t change — everything below is cosmetic.

Case Color (Required)

Customize the Build

Case finish & identification — cosmetic only. The fit above stays the same.

Lid Stripe Required
Lid Stripe (Required)
Body
Lid stripe matches body
Hardware Color Required
Hardware Color (Required)
Latches Required
Foam Color Required
Lid Branding Optional
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  • ATA-grade construction
  • Made in North Hollywood, CA
  • Built to order
  • Spec questions answered same-day
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Vertical four-lens case for the MasterBuilt prime set. The vertical layout is what rental houses ask for when the kit is rolling through stages on a cart — lenses stand on their rear-cap pockets, the AC pops the lid, and the labeled wells are at hand height with no rummaging. It's the same load pattern as a Pelican 1660 stood on end, scaled to four MasterBuilt barrels.

Interior is CNC-cut HDPE foam with deep rear-cap pockets, lid foam that's convoluted and velour-faced so the iris and focus rings don't drag on close, and engraved focal-length labels in the foam. Shell is ATA-rated hard side, sized exactly to the four-lens MasterBuilt complement.

Built in North Hollywood at 11555 Cantara Street. To spec a six-, seven-, or eight-well version, or to swap a horizontal layout, call 818-767-3030.

Specifications
SKU:
3721-4
UPC:
042782002384
Availability:
Ships in 14-21 Business Days
Weight:
16.00 LBS
Shipping:
Calculated at Checkout
Case Type:
Custom ATA Shipping Case
Application:
cine lens transport
Made in USA:
Yes
Industry:
Film, Television, Broadcast, Rental
Gear:
Cinema Lens
Case Shell:
Pelican 1660
Protection Rating:
ATA 300 Category I
Case Construction:
Injection Molded

Will this fit my setup?

Tell us what you’re protecting and everything that travels with it. We check it against this build’s foam layout and reply with either a confirmation or the change we’d make. No obligation, and it goes to the people who cut the foam.

We reply with a real answer, usually same business day.

My setup is different

Different body, extra accessories, an accessory that has to stay mounted, or dimensions that don’t exist yet. We modify an existing design or engineer a new one.

I need several

Repeatable foam layouts, consistent hardware, replacement foam and reorders against the same drawing. Standard practice for rental houses and studio fleets.