Login

Firearms
- Pistols
- Rifles
- Shotguns
- Receiver
- Class 3
- SBR
Deals
AK-47
Ammo
AR-15
Best Concealed Carry Guns
Best Home Defense Guns
Collectible
Competition
Rebates
Shop All Guns

Login

Home
Products
Categories
Firearms
Rifles

M400 SDI XSeries RM400-SDI-16B-R5FX

M400 SDI XSeries RM400-SDI-16B-R5FX

No reviews have been written for this product.

Price

$150.00 (8%) off MSRP!

$1,899.99 $1,749.99

Less than 5 remaining!

Shipping Estimate for:

M400 SDI XSeries RM400-SDI-16B-R5FX

Please select your location below to get a shipping quote.

Description

M400 SDI 5.56MM 16" BLK ROMEO5
RM400-SDI-16B-R5FX | FOXTROT

Categories: Rifles

Condition: New

Model: M400 SDI XSeries

SKU: GF-798681716128

MPN: RM400-SDI-16B-R5FX

UPC: 798681716128

Vendor: gunprime feed

Featured Products

Sale!

Kimber 1911 Stainless LW Night Guard 9mm + FREE HOLSTER $69 Value

Kimber 1911 Stainless LW Night Guard 9mm + FREE...

$799.00 $559.00 Add to Cart

Sale!

CCI Blazer 9mm Luger Ammo 115 grain FMJ Case of 1000 Rounds 5200

CCI Blazer 9mm Luger Ammo 115 grain FMJ Case of...

$279.00 $239.00 Add to Cart

Sale!

Factory Blem Beretta M9A4-G Centurion 9mm FDE 18 Round Capacity J92QM9A4G18BLM

Factory Blem Beretta M9A4-G Centurion 9mm FDE 1...

$1,099.00 $749.00 Add to Cart

Sale!

39% off MSRP

Kel-tec Sub 2000 Gen 2 9mm Glock 17 Keltec Sub2000

Kel-tec Sub 2000 Gen 2 9mm Glock 17 Keltec Sub2...

$549.00 $366.00 Add to Cart

Related Items

Sale!

Sig Sauer MCX Spear-LT Pistol 7.62x39 11.5" Barrel PMCX-762R-11B-LT-PCB

Sig Sauer MCX Spear-LT Pistol 7.62x39 11.5" Bar...

$2,199.00 $1,799.00 Add to Cart

8% off MSRP

Sig Sauer M400 556 Nato W/ Rome5 Gen II & Foxtrot MSR SDI Sentry Rifle Package RM400-SDI-16B-R5FX

Sig Sauer M400 556 Nato W/ Rome5 Gen II & Foxtr...

$1,899.99 $1,749.99 Add to Cart

Sig Sauer 365X 9mm TacPro Optics Ready 5- Magazines 365XCA-9-BXR3-TACPRO

Sig Sauer 365X 9mm TacPro Optics Ready 5- Magaz...

$799.99 Add to Cart

Sig Sauer M17 Full Size 9mm 1-17rd Mag 2-21rd Mag #M17-9-CSS-MS

Sig Sauer M17 Full Size 9mm 1-17rd Mag 2-21rd M...

$669.49 Add to Cart

Popular Items

Sale!

FN America FN 509 Compact Tactical 9mm FDE 66-100780

FN America FN 509 Compact Tactical 9mm FDE 66-1...

Add to Cart for price

Sale!

51% off MSRP

Ruger 57 Pistol 5.7X28mm 20 Round Capacity Five-Seven 16401

Ruger 57 Pistol 5.7X28mm 20 Round Capacity Five...

$599.00 $389.00 Add to Cart

Sale!

38% off MSRP

Springfield Armory Hellcat FDE 9mm 13 Round Capacity HC9319F

Springfield Armory Hellcat FDE 9mm 13 Round Cap...

$599.00 $398.00 Add to Cart

Springfield Armory Kuna 9mm Pistol W/ Strike Industry Folding Brace KN9069B-FSA

Springfield Armory Kuna 9mm Pistol W/ Strike In...

$1,349.00 Add to Cart

Sale!

Magtech 9mm Luger Ammo 124 grain FMJ Case of 1000 Rounds 9B

Magtech 9mm Luger Ammo 124 grain FMJ Case of 10...

$299.00 $239.00 Add to Cart

Sale!

CZ Shadow 2 Carry 9mm Optics Ready 15 Round Capacity 91244

CZ Shadow 2 Carry 9mm Optics Ready 15 Round Cap...

$1,449.00 $1,299.98 Add to Cart

Sale!

FN PS90 5.7x28 Black Bullpup Secret Service Rifle 3848950460

FN PS90 5.7x28 Black Bullpup Secret Service Rif...

Add to Cart for price

Sale!

Factory Blem Beretta M9A4-G Centurion 9mm FDE 18 Round Capacity J92QM9A4G18BLM

Factory Blem Beretta M9A4-G Centurion 9mm FDE 1...

$1,099.00 $749.00 Add to Cart

Sale!

Factory Blem Beretta M9A4-G Full Size 9mm FDE 18 Round Capacity J92M9A4G18BLM

Factory Blem Beretta M9A4-G Full Size 9mm FDE 1...

$1,099.00 $749.00 Add to Cart

7% off MSRP

MAC 9DS 9mm AOS Optics Ready 4.25" Barrel W/ Comp 17 Round Mags 9 DS 12500015

MAC 9DS 9mm AOS Optics Ready 4.25" Barrel W/ Co...

$1,079.99 $999.99 Add to Cart

Sale!

3% off MSRP

Bog-Pod Death Grip Clamping Tri-Pod Black Aluminum Tripod 9-59" Free Electronic Hearing Protection 1209955

Bog-Pod Death Grip Clamping Tri-Pod Black Alumi...

Add to Cart for price

Sale!

Used

(1) Police Trade Glock 21 Gen 4 45 ACP 13 Round Capacity Night Sights

(1) Police Trade Glock 21 Gen 4 45 ACP 13 Round...

$469.00 $369.00 Add to Cart

Sponsored

ROTO 12 Compact Shotgun -No FFL Required

ROTO 12 Compact Shotgun -No FFL Required

Sponsored Content

$889.00

FN PS90 5.7x28 Black Bullpup Secret Service Rifle 3848950460

FN PS90 5.7x28 Black Bullpup Secret Service Rif...

Sponsored Content

$1,399.00

Barrett Firearms Model 82A1 50 BMG FDE 20" Barrel M82A1 14030

Barrett Firearms Model 82A1 50 BMG FDE 20" Barr...

Sponsored Content

$8,828.00

Reviews (0)

Write your own review

Get ready for a good deal!

First name

Last name

Email address

This product is eligible for a custom quote. Fill out the fields above and we will email you a price quote just for you that will be valid for 24 hours.

Recommended for You

Henry Golden Boy Silver Youth 22 LR H004SY

Henry Golden Boy Silver Youth 22 LR H004SY

Bul Armory Cherokee Compact 9mm 17 Round Capacity 30101CH

Bul Armory Cherokee Compact 9mm 17 Round Capacity 30101CH

Kel-tec Bundle Sub 2000 Gen 2 9mm Glock 17 w/ Drago Pro Gear Backpack & 2 35 Round Mags Sub2000

Kel-tec Bundle Sub 2000 Gen 2 9mm Glock 17 w/ Drago Pro Gear Backpack & 2 35 Round Mags Sub2000

Factory Blem Beretta M9A4-G Centurion 9mm FDE 18 Round Capacity J92QM9A4G18BLM

Factory Blem Beretta M9A4-G Centurion 9mm FDE 18 Round Capacity J92QM9A4G18BLM

Rock River LAR-15 Entry Tactical 556 NATO AR-15 with Red Dot Optic AR1256

Rock River LAR-15 Entry Tactical 556 NATO AR-15 with Red Dot Optic AR1256

Kimber 1911 Stainless LW Night Guard 9mm + FREE HOLSTER $69 Value

Kimber 1911 Stainless LW Night Guard 9mm + FREE HOLSTER $69 Value

Buy With Confidence

All firearms ship from our APPROVED FFL Dealers.

Contact Us

info@gunprime.com

Gunprime

‪(205) 649-1664‬

Links

Sell on Gunprime

Important information regarding ammo orders

Hours

Monday - Friday: 9am - 5pm

Saturday & Sunday: Closed

Subscribe to our mailing list

Double Action vs Single Action: Understanding the Differences

Glock 43X vs. Glock 19: Which Concealed Carry Glock Is Right for You?

Can You Ship Guns to an FFL 03 Collector of Curios and Relics?

Meet the Q Boombox: The Loudest Statement in 8.6 Blackout

Meet the Smith & Wesson SPEC SERIES V: M&P®9 METAL HD

View more articles

Benelli , Beretta , Browning , Colt , CZ , FN , Glock , HK , IWI , Kel-tec , Kriss , LWRC , Mossberg , Sig Sauer , Smith & Wesson , Springfield Armory , Steyr Arms , Walther

While every effort is made to include accurate and correct images, descriptions and pricing for all products, inadvertent errors may occur. Gunprime reserves the right to modify or change pricing information or descriptions without notice. If you have a question about an item, please call or e-mail for more information before placing your order. In store pick-ups will have a transfer fee.

Copyright © 2025 | GUNPRIME.COM