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) business day. Barreled Uppers ship in approximately (2-3) business days. Barreled Uppers are built to order using our (50) point checklist, head spaced and test fired to ensure 100% function before they leave our facility. 

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LOCAL PICKUP

Local Pickup is available by appointment 10AM - 4:30PM, Monday - Friday in Charlotte, NC. You must have a NC SHIPPING address for this option to populate. If your state/zip is different, use NC, 28217. We are not set up as a retail store. 

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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



4.75" 9MM 1x10 4150 CrMoV MELONITE NITRIDE BARREL 4.75" 9MM 1x10 4150 CrMoV MELONITE NITRIDE BARREL
RETAIL: $115.00
Our Price: $94.99
SALE PRICE: $69.99
In Stock
(14)
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
SALE PRICE: $99.99
In Stock
HOLOSUN RED DOT SIGHT - SHAKE AWAKE - HS403B HOLOSUN RED DOT SIGHT - SHAKE AWAKE - HS403B
RETAIL: $205.87
Our Price: $169.99
SALE PRICE: $129.99
(Out of Stock)
16" 5.56 / .223 BARRELED UPPER - MAS DEFENSE RIDGELINE 15" M-LOK RAIL ***BLEM*** 16" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE RIDGELINE 15" M-LOK RAIL
RETAIL: $380.00
Our Price: $287.99
SALE PRICE: $209.99
In Stock
(1)
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
SALE PRICE: $99.99
In Stock
16" 300 BLACKOUT BARRELED UPPER - GEISSELE SUPER MODULAR MK4 15" M-LOK RAIL - CARBINE GAS 16" 300 BLACKOUT BARRELED UPPER - GEISSELE SUPER MODULAR MK4 15" M-LOK RAIL - CARBINE GAS
RETAIL: $495.00
Our Price: $434.99
SALE PRICE: $364.99
In Stock
***BLEM*** 80% FORGED LOWER RECEIVER AR15 - ANODIZED BLACK ***BLEM*** 80% FORGED LOWER RECEIVER AR15 - ANODIZED BLACK
RETAIL: $55.00
Our Price: $47.99
SALE PRICE: $36.99
In Stock
(4)
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: $99.99
(Out of Stock)
(7)
16" 5.56 / .223 BARRELED UPPER - SPIKES TACTICAL LW BAR2 12" QUAD RAIL 16" 5.56 / .223 BARRELED UPPER - SPIKES TACTICAL LW BAR2 12" QUAD RAIL
RETAIL: $485.00
Our Price: $414.99
SALE PRICE: $314.99
In Stock
HOLOSUN ELITE GREEN DOT SIGHT - SHAKE AWAKE - HE403B-GR HOLOSUN ELITE GREEN DOT SIGHT - SHAKE AWAKE - HE403B-GR
RETAIL: $217.64
Our Price: $194.99
SALE PRICE: $154.99
In Stock
7.5" 5.56 / .223 1x7 M4 CONTOUR 4150 CrMoV MELONITE NITRIDE BARREL 7.5" 5.56 / .223 1x7 M4 CONTOUR 4150 CrMoV MELONITE NITRIDE BARREL
RETAIL: $100.00
Our Price: $89.99
SALE PRICE: $43.87
In Stock
16" 300 AAC BLACKOUT 1x8 4150 HARDENED BARREL - PISTOL 16" 300 AAC BLACKOUT 1x8 4150 HARDENED BARREL - PISTOL
RETAIL: $120.00
Our Price: $99.99
SALE PRICE: $61.24
In Stock
UTG RED/GREEN DOT + UTG 3X MAGNIFIER W/ FLIP TO THE SIDE - COMBO UTG RED/GREEN DOT + UTG 3X MAGNIFIER W/ FLIP TO THE SIDE - COMBO
RETAIL: $170.00
Our Price: $159.98
SALE PRICE: $111.46
In Stock
(1)
16" 5.56 / .223 BARRELED UPPER - GEISSELE SUPER MODULAR MK4 15" M-LOK RAIL 16" 5.56 / .223 BARRELED UPPER - GEISSELE SUPER MODULAR MK4 15" M-LOK RAIL
RETAIL: $495.00
Our Price: $434.99
SALE PRICE: $364.99
In Stock
16" 5.56 /.223 AERO PRECISION BARRELED UPPER W/ PINNED FSB MAGPUL MOE CARBINE - APAR502503M64 16" 5.56 /.223 AERO PRECISION BARRELED UPPER W/ PINNED FSB MAGPUL MOE CARBINE - APAR502503M64
RETAIL: $335.00
Our Price: $314.99
In Stock
(3)
16" 5.56 /.223 AERO PRECISION BARRELED UPPER W/ PINNED FSB MAGPUL MOE CARBINE - APAR502504M64 - FDE 16" 5.56 /.223 AERO PRECISION BARRELED UPPER W/ PINNED FSB MAGPUL MOE CARBINE - APAR502504M64 - FDE
RETAIL: $335.00
Our Price: $314.99
In Stock
***BLEM*** 16" 300 BLACKOUT AR-15 BARRELED UPPER - MAS DEFENSE NERO 15" M-LOK RAIL - CARBINE GAS ***BLEM*** 16" 300 BLACKOUT AR-15 BARRELED UPPER - MAS DEFENSE NERO 15" M-LOK RAIL - CARBINE GAS
RETAIL: $420.00
Our Price: $282.99
SALE PRICE: $219.99
In Stock
AERO PRECISION AR15 STRIPPED UPPER RECEIVER - APAR501603C ***BLEM*** AERO PRECISION AR-15 STRIPPED UPPER RECEIVER - APAR501603C
RETAIL: $100.00
Our Price: $79.99
SALE PRICE: $46.99
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: $249.99
In Stock
(2)
***BLEM*** AERO PRECISION AR-10 .308 DPMS GEN 1 M5 UPPER RECEIVER - APAR308503C ***BLEM*** AERO PRECISION AR-10 .308 DPMS GEN 1 M5 UPPER RECEIVER - APAR308503C
RETAIL: $135.00
Our Price: $107.99
SALE PRICE: $79.99
In Stock
(5)
16" 300 BLACKOUT BARRELED UPPER - SPIKES TACTICAL LW BAR2 12" QUAD RAIL - CARBINE GAS 16" 300 BLACKOUT BARRELED UPPER - SPIKES TACTICAL LW BAR2 12" QUAD RAIL - CARBINE GAS
RETAIL: $485.00
Our Price: $414.99
SALE PRICE: $314.99
In Stock
***BLEM*** YANKEE HILL MACHINE AR-15 STRIPPED BILLET UPPER RECEIVER - YHM-110-BILLET ***BLEM*** YANKEE HILL MACHINE AR-15 STRIPPED BILLET UPPER RECEIVER - YHM-110-BILLET
RETAIL: $175.00
Our Price: $169.99
SALE PRICE: $134.99
In Stock
(3)
10.5" 300 AAC BLACKOUT 1x7 HBAR 4150 CHROME MOLY VANADIUM BARREL 10.5" 300 AAC BLACKOUT 1x7 HBAR 4150 CHROME MOLY VANADIUM BARREL
RETAIL: $120.00
Our Price: $99.99
SALE PRICE: $52.01
In Stock
(2)
NORTH SIDE KNIFE TITANIUM (6AL4V) KOMODO - BLACK NORTH SIDE KNIFE TITANIUM (6AL4V) KOMODO - BLACK
RETAIL: $300.00
Our Price: $269.99
SALE PRICE: $199.99
In Stock