Smith & Wesson M&P 40 Full Size Magazine Tube 14 Round .40 S&W / .357 Sig Part 394950000
$19.99
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Smith & Wesson M&P 40 Full Size Magazine Tube 14 Round .40 S&W / .357 Sig Part 394950000
$19.99
Smith & Wesson M&P 40 Full Size Magazine Tube — 14 Round | .40 S&W / .357 Sig | Part #394950000
This listing is for a genuine Smith & Wesson factory OEM magazine tube for the M&P 40 Full Size in .40 S&W and .357 Sig. Brand new condition — a direct replacement for damaged, cracked, or worn magazine tubes. The tube is the outer steel housing that retains the follower, spring, and base plate.
Part Details
- Part Number: 394950000
- Condition: Factory New
- OEM: Genuine Smith & Wesson factory part
- Caliber: .40 S&W / .357 Sig (stamped on tube)
- Capacity: 14 rounds
- Construction: Steel with black finish
- Includes: Magazine tube only — follower, spring, and base plate sold separately
Model Compatibility
| Model | Generation | Caliber | Capacity | Compatible |
|---|---|---|---|---|
| M&P 40 Full Size | 1.0 (M1.0) | .40 S&W | 14 rd | ✓ Yes |
| M&P 40 Full Size | 2.0 (M2.0) | .40 S&W | 14 rd | ✓ Yes |
| M&P 357 Full Size | 1.0 (M1.0) | .357 Sig | 14 rd | ✓ Yes |
| M&P 357 Full Size | 2.0 (M2.0) | .357 Sig | 14 rd | ✓ Yes |
| M&P 40 Compact | Any | .40 S&W | — | ✗ No |
| M&P 40 Shield | Any | .40 S&W | — | ✗ No |
.40 S&W and .357 Sig share the same case diameter and magazine body — this tube is compatible with both calibers in the Full Size frame. Full Size 14-round tube only — will NOT fit Compact or Shield magazines.
Installation Notes
- Disassemble magazine fully before replacing tube
- Transfer follower, spring, and base plate from old tube to new
- No gunsmith required — standard magazine disassembly tools recommended
- Function-test with your pistol before carry use
Questions? Contact our firearms parts experts at sales@usagunsandgear.com or call 770-544-8075.
No shipping outside the U.S.