Last updated April 29, 2026
Sig Sauer M400: Buy Now or Wait?
Verdict based on 5 tracked r/gundeals deals.
Bottom line
Buy now if the price is below $560.
Below $501 is a steal — these don't sit around.
$590 is average. Above $649, wait.
Set a free alert at $560 →
Verdict thresholds
Steal
< $501
Buy now
Real Deal
$501–$560
Worth grabbing
Average
$560–$649
Wait or alert
Pass
> $649
Above market
Reality check
Historical low
$400
Tracked average
$590
Highest tracked
$750
Deals tracked
5
Tracked since the Sig Sauer M400 first appeared on r/gundeals. Each price point comes from a verified post — click through any deal below for the source thread.
5 cheapest tracked Sig Sauer M400 deals
| Price | Deal | Dealer | Date |
|---|---|---|---|
| $400 | [Parts] LE Trade-in Sig M400 5.56 Complete URG 10.5" - Quad … | aimsurplus.com | Sep 30, 2025 |
| $499 | [Parts] Sig m400 10.5 upper w/ BCG, CH, Quad rail & Sico Asr… | aimsurplus.com | Jul 26, 2025 |
| $649 | [Parts] Sig Sauer M400 16" Complete Upper - $649 + $15 shipp… | acmesportsinc.com | Sep 12, 2025 |
| $650 | [Rifle] Leon Trade-In Sig M400 Tread 5.56, Stainless 16" 1/8… | aimsurplus.com | Jun 11, 2025 |
| $750 | [Rifle] Sig Sauer M400 TREAD 5.56x45 30rnd 16" $749.99 + Fre… | joeboboutfitters.com | May 13, 2025 |
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Set free price alert →Frequently Asked Questions
Should I buy a Sig Sauer M400 now?
Buy if it's below $560. Below $501 is a steal. Above $649, set a free alert and wait.
What's the lowest a Sig Sauer M400 has ever been?
$400 — verified across 5 tracked r/gundeals posts.
What price should I set my Sig Sauer M400 alert at?
$560 for the best signal-to-noise. Lower ($501) means fewer alerts but every one is a steal.
About the editor
GDA Editorial Team · Editorial team, GunDeal Alerts
We track every priced post on r/gundeals, fingerprint products, and verify dealer reputations. This page is updated as new deal data arrives.