SALES-SPECIALS
BARRELED UPPERS
UPPER PARTS
LOWER PARTS


WELCOME TO OUR STORE!

MAS Defense is committed to providing "Quality Parts at Reasonable Prices!" Our foundation is built on excellent customer service, honesty and integrity. These simple guidelines are what has made MAS Defense the preferred company it is today.

Thank you for your business and support!
Team MAS Defense


local_shipping

SHIPPING LEAD TIMES

Parts ship in approximately (2-4) business day. Barreled Uppers ship in approximately (3-5) business days. Due to the high volume of orders, we can not change, modify, edit or combine orders after they are placed.

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LOCAL PICKUP

Given the dynamic nature of the current Coronavirus (COVID-19) situation, Local Pickup is no longer available.  

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ORDERS

All of our inventory is LIVE DATA. If a part shows in stock, we have it in stock. We do not "Back Order" parts. Barreled Upper Orders can not be changed or modified in any way after they have been placed. Please contact us BEFORE  you place an order with any questions.


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FRAUD POLICY

Due to increased fraudulent activity, customers with different billing and shipping addresses or credit card names will be required to submit a copy of their drivers license to confirm their identity. Once confirmed, customers will not have to resubmit on future orders. 

FEATURED PRODUCTS



16" 5.56/.223 1x7 Ballistic Advantage M4 Profile Carbine Length Barrel - Modern Series 16" 5.56 / .223 1x7 BALLISTIC ADVANTAGE M4 PROFILE CARBINE LENGTH BARREL - MODERN BABL556014M
RETAIL: $160.00
Our Price: $152.00
In Stock
18" AR-10 .308 Ballistic Advantage Heavy Profile Rifle Length Barrel - Premium Series - BABL308005P 18" AR-10 .308 1x10 BALLISTIC ADVANTAGE HEAVY PROFILE RIFLE LENGTH BARREL - PREMIUM BABL308005P
RETAIL: $270.00
Our Price: $256.50
In Stock
16" .223 WYLDE AR-15 BALLISTIC ADVANTAGE TACTICAL GOVT STAINLESS STEEL MID-LENGTH BARREL - PREMIUM SERIES - BABL223016P 16" .223 WYLDE 1x8 BALLISTIC ADVANTAGE TACTICAL GOVT STAINLESS STEEL MID-LENGTH BARREL - PREMIUM BABL223016P
RETAIL: $195.00
Our Price: $185.25
In Stock
(1)
HOLOSUN ELITE GREEN DOT REFLEX SIGHT - HE507C-GR-V2 HOLOSUN ELITE GREEN DOT REFLEX SIGHT - HE507C-GR-V2
RETAIL: $400.00
Our Price: $339.99
(Out of Stock)
18" .223 Wylde AR-15 Ballistic Advantage Hanson Stainless Steel Mid-Length Barrel - Premium Series - BABL223019P 18" .223 WYLDE 1x8 BALLISTIC ADVANTAGE HANSON STAINLESS STEEL MID-LENGTH BARREL - PREMIUM BABL223019P
RETAIL: $255.00
Our Price: $242.25
In Stock
HOLOSUN RED DOT REFLEX SIGHT - HS507C-V2 HOLOSUN RED DOT REFLEX SIGHT - HS507C-V2
RETAIL: $365.00
Our Price: $309.99
(Out of Stock)
16" AR-10 .308 1x10 BALLISTIC ADVANTAGE TACTICAL GOVERNMENT MID-LENGTH BARREL - MODERN BABL308003M 16" AR-10 .308 1x10 BALLISTIC ADVANTAGE TACTICAL GOVERNMENT MID-LENGTH BARREL - MODERN BABL308003M
RETAIL: $230.00
Our Price: $218.50
In Stock
(8)
SB TACTICAL SBM4 PISTOL STABILIZING BRACE - SBM4-01-SB SB TACTICAL SBM4 PISTOL STABILIZING BRACE - SBM4-01-SB
RETAIL: $100.00
Our Price: $89.99
SALE PRICE: $74.99
In Stock
MAS DEFENSE 15" RIDGELINE M-LOK AR-15 QUAD RAIL MAS DEFENSE 15" RIDGELINE M-LOK AR-15 QUAD RAIL
RETAIL: $150.00
Our Price: $134.99
In Stock
(1)
18" AR-10 .308 1x10 BALLISTIC ADVANTAGE TACTICAL GOVERNMENT MID-LENGTH BARREL - MODERN BABL308005M 18" AR-10 .308 1x10 BALLISTIC ADVANTAGE TACTICAL GOVERNMENT MID-LENGTH BARREL - MODERN BABL308005M
RETAIL: $240.00
Our Price: $228.00
In Stock
(3)
MAS DEFENSE 15" MW8 OCTAGON M-LOK AR-15 RAIL MAS DEFENSE 15" MW8 OCTAGON M-LOK AR-15 RAIL
RETAIL: $150.00
Our Price: $134.99
In Stock
(3)
SB TACTICAL SBA3 5-POSITION ADJUSTABLE PISTOL STABILIZING BRACE FDE - SBA3-02-SB SB TACTICAL SBA3 5-POSITION ADJUSTABLE PISTOL STABILIZING BRACE FDE - SBA3-02-SB
RETAIL: $170.00
Our Price: $129.99
(Out of Stock)
(3)
16" .300 Blackout Ballistic Advantage DRP Profile Pistol Length AR-15 Barrel - Modern Series - BABL300011M 16" 300 BLACKOUT 1x7 BALLISTIC ADVANTAGE DRP PROFILE PISTOL LENGTH BARREL - MODERN BABL300011M
RETAIL: $180.00
Our Price: $171.00
In Stock
POLYMER80 AR15 RHINO RL556V3 80% POLYMER LOWER RECEIVER KIT BLACK - P80-RL556v3-BLK POLYMER80 AR15 RHINO 80% POLYMER LOWER RECEIVER KIT BLACK - P80-RL556V3-BLK
RETAIL: $79.99
Our Price: $74.99
SALE PRICE: $59.99
In Stock
(42)
9.5" .300 Blackout Ballistic Advantage DRP Profile Pistol Length AR-15 Barrel - Modern Series - BABL300005M 9.5" 300 BLACKOUT 1x7 BALLISTIC ADVANTAGE DRP PROFILE PISTOL LENGTH BARREL - MODERN BABL300005M
RETAIL: $160.00
Our Price: $152.00
In Stock
HOLOSUN ELITE GREEN REFLEX DOT SIGHT - SHAKE AWAKE - HE507C-GR HOLOSUN ELITE GREEN REFLEX DOT SIGHT - SHAKE AWAKE - HE507C-GR
RETAIL: $399.99
Our Price: $329.99
SALE PRICE: $247.49
(Out of Stock)
(4)
80% BILLET LOWER RECEIVER GLOCK 9MM AR-9 - BLACK 80% BILLET LOWER RECEIVER GLOCK 9MM AR-9 - BLACK
RETAIL: $150.00
Our Price: $129.99
SALE PRICE: $106.99
In Stock
SB TACTICAL SBA4 PISTOL STABILIZING BRACE 5-POSITION - SBA4-02-SB - FDE SB TACTICAL SBA4 PISTOL STABILIZING BRACE 5-POSITION - SBA4-02-SB - FDE
RETAIL: $170.00
Our Price: $129.99
(Out of Stock)
(2)
TROY INDUSTRIES 9" ALPHA RAIL FDE - STRX-AL1-90FT-01 TROY INDUSTRIES 9" ALPHA RAIL FDE - STRX-AL1-90FT-01
RETAIL: $175.00
Our Price: $154.99
SALE PRICE: $134.99
In Stock
(1)
12.5" AR-10 .308 1x10 BALLISTIC ADVANTAGE TACTICAL GOVERNMENT CARBINE LENGTH BARREL - MODERN BABL308008M 12.5" AR-10 .308 1x10 BALLISTIC ADVANTAGE TACTICAL GOVERNMENT CARBINE LENGTH BARREL - MODERN BABL308008M
RETAIL: $210.00
Our Price: $199.50
In Stock
(9)
POLYMER80 GLOCK 19/23 80% POLYMER LOWER RECEIVER BLACK - P80-PF940CV1-BLK POLYMER80 GLOCK 19/23 80% POLYMER LOWER RECEIVER BLACK - P80-PF940CV1-BLK
RETAIL: $160.00
Our Price: $149.99
SALE PRICE: $109.99
(Out of Stock)
(32)
SB TACTICAL SBA4 PISTOL STABILIZING BRACE 5-POSITION - SBA4-01-SB SB TACTICAL SBA4 PISTOL STABILIZING BRACE 5-POSITION - SBA4-01-SB
RETAIL: $170.00
Our Price: $129.99
(Out of Stock)
(4)
20" .223 WYLDE 1x8 BALLISTIC ADVANTAGE DMR STAINLESS STEEL RIFLE GAS BARREL - PREMIUM BABL223022P 20" .223 WYLDE 1x8 BALLISTIC ADVANTAGE DMR STAINLESS STEEL RIFLE GAS BARREL - PREMIUM BABL223022P
RETAIL: $260.00
Our Price: $247.00
In Stock
(3)
AR-9 SHOCKWAVE BLADE 2M PISTOL STABILIZER - BLACK - KIT OPTIONS AVAILABLE - KAK-SHKWV-BLK-2M AR-9 SHOCKWAVE BLADE 2M PISTOL STABILIZER - BLACK - KIT OPTIONS AVAILABLE - KAK-SHKWV-BLK-2M
RETAIL: $50.00
Our Price: $44.99
In Stock