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 (1-3) business day. Barreled Uppers ship in approximately (2-4) business days. Due to the high volume of orders, we can not change, modify, edit or combine orders after they are placed. E-mails can take up to 48 hours to respond to.

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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.


receipt

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



SB TACTICAL SBA3 5-POSITION ADJUSTABLE PISTOL STABILIZING BRACE - SBA3-01-SB SB TACTICAL SBA3 5-POSITION ADJUSTABLE PISTOL STABILIZING BRACE - SBA3-01-SB
RETAIL: $170.00
Our Price: $129.99
In Stock
(33)
POLYMER80 GLOCK 17/22 80% POLYMER LOWER RECEIVER OD GREEN - P80-PF940V2-ODG POLYMER80 GLOCK 17/22 80% POLYMER LOWER RECEIVER OD GREEN - P80-PF940V2-ODG
RETAIL: $160.00
Our Price: $149.99
SALE PRICE: $129.99
In Stock
(6)
POLYMER80 GLOCK 17/22 80% POLYMER LOWER RECEIVER BLACK - P80-PF940V2-BLK POLYMER80 GLOCK 17/22 80% POLYMER LOWER RECEIVER BLACK - P80-PF940V2-BLK
RETAIL: $160.00
Our Price: $149.99
SALE PRICE: $129.99
In Stock
(13)
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)
(14)
POLYMER80 GLOCK 17/22 80% POLYMER LOWER RECEIVER - FLAT DARK EARTH (FDE) - P80-PF940V2-FDE POLYMER80 GLOCK 17/22 80% POLYMER LOWER RECEIVER - FLAT DARK EARTH (FDE) - P80-PF940V2-FDE
RETAIL: $160.00
Our Price: $149.99
SALE PRICE: $129.99
In Stock
(9)
18" .223 Wylde AR-15 Ballistic Advantage Hanson Stainless Steel Mid-Length Barrel - Premium Series - BABL223019P 18" .223 WYLDE AR-15 1x8 BALLISTIC ADVANTAGE HANSON STAINLESS STEEL MID-LENGTH BARREL - PREMIUM BABL223019P
RETAIL: $255.00
Our Price: $242.25
SALE PRICE: $164.99
In Stock
POLYMER80 GLOCK 17/22 80% POLYMER LOWER RECEIVER GRAY - P80-PF940V2-GRY POLYMER80 GLOCK 17/22 80% POLYMER LOWER RECEIVER GRAY - P80-PF940V2-GRY
RETAIL: $160.00
Our Price: $149.99
SALE PRICE: $129.99
In Stock
(5)
***BLEM*** 80% BILLET LOWER RECEIVER GLOCK 9MM AR-9 - BLACK ***BLEM*** 80% BILLET LOWER RECEIVER GLOCK 9MM AR-9 - BLACK
RETAIL: $150.00
Our Price: $129.99
SALE PRICE: $99.99
In Stock
(1)
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
SALE PRICE: $124.99
In Stock
(8)
8.5" .300 Blackout Ballistic Advantage DRP Profile Pistol Length AR-15 Barrel - Modern Series - BABL300003M 8.5" 300 BLACKOUT AR-15 1x7 BALLISTIC ADVANTAGE DRP PROFILE PISTOL LENGTH BARREL - MODERN BABL300003M
RETAIL: $155.00
Our Price: $147.25
SALE PRICE: $99.99
In Stock
(6)
16" 300 BLACKOUT BARREL - GAS BLOCK - GAS TUBE COMBO 16" 300 BLACKOUT BARREL - GAS BLOCK - GAS TUBE COMBO
RETAIL: $206.00
Our Price: $177.97
SALE PRICE: $99.99
In Stock
(1)
BURRIS FASTFIRE II 4 MOA RED DOT - BU300232 BURRIS FASTFIRE II 4 MOA RED DOT - BU300232
RETAIL: $210.00
Our Price: $199.99
SALE PRICE: $149.99
In Stock
(1)
16" AR-10 .308 Ballistic Advantage Government Profile Mid-Length Barrel - Modern Series - BABL308003P 16" AR-10 .308 1x10 BALLISTIC ADVANTAGE TACTICAL GOVERNMENT MID-LENGTH BARREL - PREMIUM BABL308003P
RETAIL: $260.00
Our Price: $247.00
SALE PRICE: $169.99
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
(Out of Stock)
(64)
16" .223 WYLDE AR-15 1x8 BALLISTIC ADVANTAGE HANSON STAINLESS STEEL MID-LENGTH BARREL - PREMIUM BABL223013P 16" .223 WYLDE AR-15 1x8 BALLISTIC ADVANTAGE HANSON STAINLESS STEEL MID-LENGTH BARREL - PREMIUM BABL223013P
RETAIL: $245.00
Our Price: $232.75
SALE PRICE: $149.99
In Stock
(2)