Mystery Ranch Marshall 105 vs Stone Glacier Sky Archer 6400
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Quick take: The Stone Glacier Sky Archer 6400 carries more (105 vs 103 liters); the Stone Glacier Sky Archer 6400 is lighter (5.18 vs 6.7 lbs).
| Spec | Mystery Ranch Marshall 105 | Stone Glacier Sky Archer 6400 |
|---|---|---|
| Price | $750 | $750 |
| Rating | 5★ (6) | 4.3★ (6) |
| Type | Hunting Pack | Hunting Pack |
| Frame Type | Internal Frame | External Frame |
| Capacity | 103 L | 105 L |
| Weight | 6.7 lbs | 5 lb 2.8 oz (Krux) / 5 lb 6.8 oz (Xcurve), complete with medium belt |
| Max Load | No official rating (reviewers report 60+ lb loads with no frame flex; expedition-class hauler) | 150+ lbs |
| Torso Fit | S–XL frame sizes with adjustable yoke (S/M ~15–20 in, L/XL ~17–24 in torsos); women's version available | Hook-and-loop harness with continuous height and angle adjustment; S/M/L belts (28"-37"+); Krux Short frame option for shorter torsos |
| Material | 330 HT CORDURA 5PM and 330D Robic Kodra ripstop with YKK zippers and SJ Autolock buckles | 500D Cordura + X-Pac laminate, YKK #10 Aquaguard zippers, 1" Duraflex military-spec hardware, made in USA |
| Back Panel | MYSTERIUM frame (2025 successor to the Guide Light MT) with adjustable yoke and five-piece hipbelt | Foam-padded carbon-stay frame panel (Krux or Xcurve frame) with nitrogen-infused foam harness |
| Adjustable torso | Yes | Yes |
| Ventilated back | No | No |
| Raincover included | No | No |
| Hipbelt pockets | No | No |
| Removable lid | Yes | Yes |
| Hydration sleeve | Yes | No |
| Fits BV500 bear can | Yes | Yes |
| Warranty | Mystery Ranch lifetime guarantee against manufacturing defects | Lifetime warranty against defects in materials and workmanship |
Pros & cons
Mystery Ranch Marshall 105
- ✓This is Mystery Ranch's biggest hunting pack by a wide margin — 103 liters swallows 10+ days of gear, and Outside Bozeman called the attention to detail on 'this 105-liter beast' evident the moment you strap it on.
- ✓Long-term testers load it brutally: Backwoods Pursuit packed two elk quarters plus antlers with 'no slippage' and found no noticeable vertical frame flex, with 60+ lb loads staying comfortable.
- ✓The Overload meat shelf is unusually easy to deploy for a pack this size — reviewers single out the ease of access for getting quarters between frame and bag.
- ✓The dedicated bottom speed compartment keeps a sleeping bag accessible without unpacking, and dual full-length side zippers reach the middle of the enormous main bag — access most expedition top-loaders can't match.
- ✓The removable lid converts to a daypack, so you can drop camp and stalk light from a spike camp without carrying a second pack.
- ✓Outside Bozeman raved about the carry: the five-point hipbelt 'hugs the hips with a secure firmness, while the back panel and load straps pull the weight off the shoulders' — even suggesting you add 15 lbs more than you think you can carry.
- ✓The 2025 MYSTERIUM rebuild cut roughly 0.8 lbs versus the old Guide Light MT Marshall while adding the new weatherproof CORDURA 5PM fabric.
- ✓Owner reviews are a perfect 5.0 at Scheels, with one guide-type user writing 'I trust my life with the Marshall' — and Mystery Ranch's lifetime guarantee backs it.
- ✗At $750 ($800 in OPTIFADE Subalpine) it is Mystery Ranch's most expensive hunting pack, priced right against a Stone Glacier Terminus 7000 or Exo K4 7200 without their lighter weight or modular bag swaps.
- ✗At 6.7 lbs it runs about 1.5-2 lbs heavier than comparable Stone Glacier and Exo expedition systems — weight you carry on every mile of a long hunt.
- ✗Noise is the recurring Mystery Ranch gripe: the prior-generation Marshall tester reported squeaky shoulder straps and fabric that's loud brushing through branches on stalks.
- ✗The lid-to-daypack conversion is more clever than comfortable — the Backwoods Pursuit reviewer 'never really found it to be comfortable' as an actual stalking pack.
- ✗External storage is lean for a pack this size — two torpedo pockets and no stock hipbelt pockets, so quick-access items depend on add-on accessories.
- ✗Mystery Ranch publishes no official load rating, leaving buyers to forum anecdotes while Stone Glacier claims a 150 lb spec on its expedition frames.
- ✗As of mid-2026 it is backorder-only direct from Mystery Ranch and thin at retail (GOHUNT showing only a couple units), so finding your frame size can take patience.
- ✗Forum consensus is that 103 liters is overkill for most lower-48 hunts — unless you routinely do 5+ day bivy hunts or fly-in trips, a Metcalf or Beartooth carries better and invites less overpacking.
Stone Glacier Sky Archer 6400
- ✓The 26-inch side zipper is the killer feature no competitor matches at this weight: full-height internal access with the bow still strapped to the pack face — Rokslide owners who switched from the Talus 6900 say it eliminates the unpack-your-bow dance entirely.
- ✓Purpose-built bow carry using the top compression system and integrated storm flap holds the bow tight against the bag, keeping weight centered rather than swinging off one side like universal bow slings on Kifaru or Exo packs.
- ✓Lightest expedition-size pack Stone Glacier makes — 5 lb 2.8 oz complete on the Krux, 4 oz lighter than the Sky Talus 6900 while carrying nearly identical volume, a spec that got long-time 6900 owners on Rokslide to switch.
- ✓The 2024 refresh directly answered the old 6250's minimalism complaints: external-access spotting scope pocket, 8-inch zippered stow pocket, and 14-inch stretch side pocket for a tripod or Nalgene.
- ✓500 ci Sky Lid is included in the price, unlike the Solo and Col where lids are extra or unsupported — and Bivy Mode compresses the bag to a legitimate 4,000 ci day pack.
- ✓Full 150+ lb load rating with the 2,500+ ci expandable load shelf means one pack covers scouting trips, week-long elk hunts, and the heavy pack-out.
- ✓YKK Aquaguard water-resistant zippers plus X-Pac construction give it the best weather resistance in the Sky line without a rain cover.
- ✓Made in Bozeman with Stone Glacier's lifetime defect warranty, and the bag swaps onto any existing SG frame if you already own a Krux or Xcurve.
- ✗Only 6 reviews at 4.3/5 on stoneglacier.com — the lowest-rated and least-reviewed bag in the current SG lineup, so the redesign has a thin track record compared to the 220-review Sky Talus 6900.
- ✗A multi-year owner on Rokslide concluded 'I'd rather have a few more pockets and just unbuckle my bow' and preferred the Talus 6900's organization — the side-zip advantage matters less than it seems for some hunters.
- ✗Contains PFAS-treated fabric and cannot be shipped to California or New York, an unusual restriction competitors like Exo and Kifaru don't carry.
- ✗Availability is spotty: most Krux-frame and several Xcurve size/color combos were back-ordered or sold out at the time of research, a recurring theme since the original 6400 launch.
- ✗Still fundamentally a minimalist single-compartment bag — the Talus 6900 offers four external side pockets at the same $750 for hunters who prioritize organization over bow access.
- ✗Hydration sleeve, Swing-Out Pockets, Camp Pockets, and hipbelt pockets are all sold separately, so a fully rigged bag costs $850+.
- ✗The bow occupies the front of the pack, so rifle hunters get no benefit from the signature feature and are better served by the Sky 5900 or Talus 6900.
- ✗When the bag is stuffed to its full 6,400 ci, Rokslide users note the internal spotter pocket and side-zip access get tight — the design shines most at partial loads.