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Home / NFA Products / Maxim Defense Industries / MAXIM DEFENSE SDX RFLX SBR 300 Blk Carbine CTR Stock Black
MAXIM DEFENSE SDX RFLX SBR 300 Blk Carbine CTR Stock Black

MAXIM DEFENSE SDX RFLX SBR 300 Blk Carbine CTR Stock Black

Lowest Listed Price
MSRP
$3,695
Savings
10% off
Retailers Reporting In Stock
15 Stores
Updated
Sep 8, 2026
Compare Deals from 18 Retailers
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["Includes Magpul CTR Stock","SDX 2-Piece M-LOK Handguard","Enhanced MIL-SPEC Lower Receiver Parts & Components","129 dB at Shooters Ear with Subsonic Ammunition","Full Auto Rated"]

Specifications

Caliber
300 Blackout
Brand
Maxim Defense Industries
Model
"SDX RFLX"
MPN
MXM-49222
UPC
680017492229

Description

MAXIM DEFENSE SDX RFLX SBR 300 Blk Carbine CTR Stock Black

Ammunition

Frontier Cartridge Military Grade 300 AAC Blackout Ammo 125 Grain Full Metal Jacket Box of 20 - Hornady
▼ 40%
Hornady
Frontier Cartridge Military Grade 300 AAC Blackout Ammo 125 Grain Full Metal Jacket Box of 20
$20.49 $33.95
$1.02/rd
● In Stock
Hornady Custom 300 AAC Blackout Ammo 110 Grain Hornady CX Polymer Tip Lead Free Box of 20 - Hornady
▼ 38%
Hornady
Hornady Custom 300 AAC Blackout Ammo 110 Grain Hornady CX Polymer Tip Lead Free Box of 20
$32.99 $52.95
$1.65/rd
● In Stock
Hornady Black 300 AAC Blackout Ammo 110 Grain Hornady NTX Polymer Tip Lead Free Box of 20 - Hornady
▼ 35%
Hornady
Hornady Black 300 AAC Blackout Ammo 110 Grain Hornady NTX Polymer Tip Lead Free Box of 20
$32.99 $50.95
$1.65/rd
● In Stock
Barnes VOR-TX 300 AAC Blackout Ammo 110 Grain Barnes Tipped TAC-TX Polymer Tip Lead Free Box of 20 - Barnes
▼ 21%
Barnes
Barnes VOR-TX 300 AAC Blackout Ammo 110 Grain Barnes Tipped TAC-TX Polymer Tip Lead Free Box of 20
$41.99 $52.99
$2.10/rd
● In Stock
Nosler BT 300 AAC Blackout Ammo 220 Grain Nosler Ballistic Tip Polymer Tip Box of 20 - Nosler
▼ 29%
Nosler
Nosler BT 300 AAC Blackout Ammo 220 Grain Nosler Ballistic Tip Polymer Tip Box of 20
$39.19 $54.95
$1.96/rd
● In Stock
Federal Power-Shok 300 AAC Blackout Ammo 120 Grain Solid Hollow Point Lead Free Box of 20 - Federal
▼ 35%
Federal
Federal Power-Shok 300 AAC Blackout Ammo 120 Grain Solid Hollow Point Lead Free Box of 20
$33.36 $50.99
$1.67/rd
● In Stock
Remington UMC Value Pack .300 AAC Blackout 220gr Open Tip Flat Base 50Rds - Remington
▼ 33%
Remington
Remington UMC Value Pack .300 AAC Blackout 220gr Open Tip Flat Base 50Rds
$70.29 $104.99
$1.41/rd
● In Stock

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