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 will ship in (1-2) 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. 

store

LOCAL PICKUP

Local Pickup is available by appointment 10AM - 5PM, 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 do not have a retail store and are not taking walk-in customers at this time. 

list_alt

ORDERS

All of our inventory is LIVE DATA. If a part shows in stock, we have it in stock. We do not believe in "Back Ordering" 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 if you have any questions or if you are unsure of fitment. 


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. We apologize for the inconvenience.

FEATURED PRODUCTS



AERO PRECISION AR-10 .308 M5 UPPER RECEIVER AND 15" ATLAS R-ONE M-LOK HANDGUARD - APAR308503C AND APRA538705A AERO PRECISION AR-10 .308 M5 UPPER RECEIVER AND 15" ATLAS R-ONE M-LOK HANDGUARD - APAR308503C AND APRA538705A
RETAIL: $345.00
Our Price: $286.48
SALE PRICE: $199.99
In Stock
(1)
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
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: $99.99
In Stock
(11)
HOLOSUN ELITE GREEN DOT SIGHT - SOLAR - HE403C-GR HOLOSUN ELITE GREEN DOT SIGHT - SOLAR - HE403C-GR
RETAIL: $255.00
Our Price: $215.99
SALE PRICE: $183.59
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
(2)
POLYMER80 AR15 RHINO 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)
(25)
HOLOSUN RED CIRCLE / DOT SIGHT - ROTARY SWITCH - HS503R HOLOSUN RED CIRCLE / DOT SIGHT - ROTARY SWITCH - HS503R
RETAIL: $285.00
Our Price: $241.99
SALE PRICE: $205.69
In Stock
***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
(1)
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: $87.74
In Stock
16" 300 BLACKOUT BARRELED UPPER - GEISSELE SUPER MODULAR MK13 15" M-LOK RAIL - CARBINE GAS 16" 300 BLACKOUT BARRELED UPPER - GEISSELE SUPER MODULAR MK13 15" M-LOK RAIL - CARBINE GAS
RETAIL: $495.00
Our Price: $434.99
SALE PRICE: $364.99
In Stock
AERO PRECISION AR15 STRIPPED UPPER RECEIVER - APAR501603C ***BLEM*** AERO PRECISION AR15 STRIPPED UPPER RECEIVER - APAR501603C
RETAIL: $100.00
Our Price: $79.99
SALE PRICE: $47.99
(Out of Stock)
16" 300 BLACKOUT BARRELED UPPER - MAS DEFENSE 15" MW8 OCTAGON M-LOK RAIL 16" 300 BLACKOUT BARRELED UPPER - MAS DEFENSE 15" MW8 OCTAGON M-LOK RAIL
RETAIL: $395.00
Our Price: $287.99
SALE PRICE: $237.99
In Stock
MAS DEFENSE 12.62" MW8 OCTAGON M-LOK AR-15 RAIL MAS DEFENSE 12.62" MW8 OCTAGON M-LOK AR-15 RAIL
RETAIL: $140.00
Our Price: $124.99
SALE PRICE: $81.24
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" 5.56 / .223 BARRELED UPPER - MAS DEFENSE 15" MW8 OCTAGON M-LOK RAIL 16" 5.56 / .223 BARRELED UPPER - MAS DEFENSE 15" MW8 OCTAGON M-LOK RAIL
RETAIL: $380.00
Our Price: $287.99
SALE PRICE: $237.99
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
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 REFLEX DOT SIGHT - SHAKE AWAKE - HE507C-GR HOLOSUN ELITE GREEN REFLEX DOT SIGHT - SHAKE AWAKE - HE507C-GR
RETAIL: $389.00
Our Price: $329.99
SALE PRICE: $280.49
In Stock
(2)
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
In Stock
(5)
HOLOSUN ELITE GREEN DOT SIGHT - SHAKE AWAKE - HE403B-GR HOLOSUN ELITE GREEN DOT SIGHT - SHAKE AWAKE - HE403B-GR
RETAIL: $225.00
Our Price: $194.99
SALE PRICE: $149.99
In Stock
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" 300 BLACKOUT BARRELED UPPER - MAS DEFENSE RIDGELINE 15" M-LOK RAIL 16" 300 BLACKOUT BARRELED UPPER - MAS DEFENSE RIDGELINE 15" M-LOK RAIL
RETAIL: $395.00
Our Price: $287.99
SALE PRICE: $237.99
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
MAS DEFENSE 12.62" RIDGELINE M-LOK AR-15 QUAD RAIL MAS DEFENSE 12.62" RIDGELINE M-LOK AR-15 QUAD RAIL
RETAIL: $140.00
Our Price: $124.99
SALE PRICE: $81.24
In Stock
(1)