In StockSave 9%
Sig Sauer M400 5.56 NATO Semi-Auto Rifle 16" 30rd, Black - RM400-SDI-16B-P
Sold byPalmetto State Armory•Posted May 18, 2026
Compare prices for Sig Sauer M400 SDI Semi Automatic Rifle 5.56x45mm NATO 16" Black Threaded Barrel Anodized Black Frame Black Pistol Grip$1,499.99
$1,649.99
You save $150.00 (9% off)
Price and stock data refresh continuously from Palmetto State Armory.
Deal Summary
- Currently in stock.
- Caliber: 223/5.56
- Category: ammunition
- UPC: 798681664634
- SKU: 51655130770
- Brand: Sig Sauer
Price History
Deal Details
#html-body [data-pb-style=VXBFPIR]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll}The SIG SAUER M400 SDI XSERIES packs a rich set of features and upgrades into the M400 platform delivering an advanced performance rifle right out of the box. The M400 XSERIES lower features fully ambidextrous controls, including bolt catch & release, selector switch, charging handle and mag re
Other Offers for This Product
Active offers from your catalog for Sig Sauer M400 SDI Semi Automatic Rifle 5.56x45mm NATO 16" Black Threaded Barrel Anodized Black Frame Black Pistol Grip.
Comparing 7 retailers carrying this product
Lowest Price: $1,499.99
Highest Price: $1,507.99
You Save: $8.00
Avg Discount: 4% off
Sig Sauer M400 5.56 NATO Semi-Auto Rifle 16" 30rd, Black - RM400-SDI-16B-P
Sig SauerPalmetto State ArmorySKU/UPC: 51655130770
$1,499.99$1,649.99Save 9%
View at Palmetto State Armory
Sig Sauer M400 SDI XSeries, 5.56mm, 16 Barrel, 1- 30 Round Magazine, Black, Rifle
Sig SauerBattleHawk ArmorySKU/UPC: 798681664634
$1,499.99$1,649.99Save 9%
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Sig Sauer M400 SDI Semi Automatic Rifle 5.56x45mm NATO 16" Black Threaded Barrel Anodized Black Frame Black Pistol Grip
Sig SauerMidwayUSASKU/UPC: 109193
$1,499.99
View at MidwayUSA
M400 Sdi Xseries 5.56x45 Nato Semi-Auto Rifle - M400 Sdi Xseries 5.56x45 Nato 16'''' Bbl (1)30rd Mag Black
Sig Sauer, Inc.BrownellsSKU/UPC: 430103388
$1,499.99
View at Brownells
Sig Sauer M400 SDI XSeries 5.56 16 Barrel 30-Rounds
Sig SauerGrabAGunSKU/UPC: GAG_RM400SDI16BP-150132
$1,499.99$1,649.99Save 9%
View at GrabAGun
Sig Sauer RM400SDI16BP M400 X-Series 5.56x45mm 30+1 16 in Black FNC Chrome Moly Steel Barrel, 15 in M-LOK Handguard, Synthetic Magpul SL-K Stock, Black Polymer Grip, Rifle
Sig SauerHinterland OutfittersSKU/UPC: 196212
$1,499.99
View at Hinterland Outfitters