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***MAS DEFENSE***
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.223 WYLDE
16" .223 WYLDE
18" .223 WYLDE
20" .223 WYLDE
300 BLACKOUT
6" 300 AAC BLACKOUT
7.5" 300 AAC BLACKOUT
8.5" 300 AAC BLACKOUT
10.5" 300 AAC BLACKOUT
16" 300 AAC BLACKOUT
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5.25" 9MM
8.3" 9MM
11" 9MM
16" 9MM
AR-15 BUILD KITS
AR-15 UPPER PARTS
AR-15 UPPER RECEIVERS
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5.56 NATO BARRELS
.223 WYLDE BARRELS
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15"+ EXT RIFLE
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1/2 x 28 TPI
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80% LOWERS
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***SALES & SPECIALS***
BLEM SALE
MAS DEFENSE
BALLISTIC ADVANTAGE
FAXON FIREARMS
FRANKLIN ARMORY
G-FLEX TRIGGERS
MAGPUL
MISSION FIRST TACTICAL
NORSSO GLOCK SLIDES
POLYMER80
ROCK RIVER ARMS
SB TACTICAL
SYLVAN ARMS
UTG / LEAPERS
BRANDS
A - L
5D TACTICAL
80% ARMS
AERO PRECISION
BALLISTIC ADVANTAGE
DEL-TON
FAXON FIREARMS
FRANKLIN ARMORY
G-FLEX TRIGGERS
GEISLER DEFENCE
HOLOSUN
JSD SUPPLY
M - Z
***MAS DEFENSE***
MAGPUL
MISSION FIRST TACTICAL
NORSSO GLOCK SLIDES
NORTH SIDE KNIVES
POLYMER80
ROCK RIVER ARMS
ROOK TACTICAL
SB TACTICAL
SHOCKWAVE - KAK
SYLVAN ARMS
UTG / LEAPERS
AR-15
AR-15 BARRELED UPPERS
5.56 NATO / .223
7.5" - 8" 5.56 NATO
10.5" 5.56 NATO
11.5" 5.56 NATO
13.9" 5.56 NATO
14.5" 5.56 NATO
16" 5.56 NATO
18" 5.56 NATO
.223 WYLDE
16" .223 WYLDE
18" .223 WYLDE
20" .223 WYLDE
300 BLACKOUT
6" 300 AAC BLACKOUT
7.5" 300 AAC BLACKOUT
8.5" 300 AAC BLACKOUT
10.5" 300 AAC BLACKOUT
16" 300 AAC BLACKOUT
9MM
5.25" 9MM
8.3" 9MM
11" 9MM
16" 9MM
AR-15 BUILD KITS
AR-15 UPPER PARTS
AR-15 UPPER RECEIVERS
AR-15 BARRELS
5.56 NATO BARRELS
.223 WYLDE BARRELS
300 BLACKOUT BARRELS
9MM BARRELS
AR-15 BCG's / CHARGING HANDLES
BOLT CARRIER GROUPS
CHARGING HANDLES
HANDGUARDS
ALL HANDGUARDS
ACCESSORIES
DROP IN
4"-5" PISTOL
7" CARBINE
9"-10" SPECTER
11"-13" RIFLE
15"+ EXT RIFLE
AR-15 GAS BLOCKS / TUBES
AR-15 MUZZLE DEVICES
1/2 x 28 TPI
1/2 x 36 TPI
5/8 x 24 TPI
THREAD CONVERTERS
AR-15 LOWER PARTS
LOWER PARTS AND KITS
TRIGGERS
GRIPS
STOCKS - PISTOL BRACES
PISTOLS - ARM BRACES
RIFLES - STOCKS
80% LOWERS
POLYMER 80% LOWERS
FORGED 80% LOWERS
BILLET 80% LOWERS
AR-9 LOWER PARTS
AR-10
AR-10 BARRELED UPPERS
AR-10 UPPER PARTS
AR-10 UPPER RECEIVERS
AR-10 BARRELS
AR-10 BCG's / CHARGING HANDLES
AR-10 HANDGUARDS
AR-10 GAS BLOCK / GAS TUBES
AR-10 MUZZLE DEVICES
AR-10 LOWER PARTS
AR-10 LOWER PARTS KITS
AR-10 TRIGGERS
AR-10 STOCKS - KITS
AR-10 GRIPS
AR-10 80% LOWERS
GLOCK
GLOCK SLIDE PARTS
GLOCK BARRELS
G26 BARRELS
G19 BARRELS
G17 BARRELS
G34 BARRELS
G23 BARRELS
G22 BARRELS
GLOCK SLIDES & PARTS
G43 SLIDES & PARTS
G26 SLIDES & PARTS
G19 SLIDES & PARTS
G17 SLIDES & PARTS
GLOCK FRAME PARTS
GLOCK 43 FRAME PARTS
GLOCK 26/27 FRAME PARTS
GLOCK 19/23 FRAME PARTS
GLOCK 17/22 FRAME PARTS
GLOCK 20/21 FRAME PARTS
80% FRAMES & JIGS
G43 SINGLE STACK
G26/27 SUB-COMPACT
G19/23/32 COMPACT
G17/22 FULL SIZE
G20/21 SF XL SIZE
SIG P320
SIG P320 UPPER PARTS
SIG P320 FRAME PARTS
80% INSERTS & JIGS
SIGHTS
SIGHTS
OPTICS
TOOLS
TOOLS
KNIVES
SWAG
Return to HOLOSUN ELITE GREEN DOT REFLEX SIGHT - HE507C-GR-X2 (E-MAIL US FOR OUR BEST PRICE!)
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0 of 0 people found the following review helpful:
Holosun Purchase
August 7, 2022
: Stacey from Puyallup, WA United States
The folks at Mas Defense are great to work with. Great communication and a quick turn-around on receiving my Holosun!
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0 of 0 people found the following review helpful:
Great Optic, Mounting Screws Bind P80 Extractor
May 27, 2022
: Robert from USA
Purchased this for a PF940C build with a Live Free Armory G19 Combat Slide. Gun functioned flawlessly prior to optic installation but suffered extraction failures after optic mounting. Screws supplied by Holosun are either too short or too long for optic mounting. The short screws don't provide adequate thread depth for purchase/ stability, the longer screws contact the extractor depressor plunger and interfere with it's motion. I had to trim down the screws provided. Holosun needs to get a clue about this. This would be a 5-star optic if the screw snafu weren't a problem, but when installation stops your gun from running the optic loses 2-stars.
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MAS Defense Reply: Robert, I apologize for the issue. These optics have been around for quite some time. We have sold a bunch and have never had this issue reported. We will send your comments to Holosun for their review. I would suggest measuring the LFA slide and compare it to other well know brand name slides to see if their tolerances may not be the same as others.
Thank you for your business and your feedback!
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0 of 0 people found the following review helpful:
excellent sight/ great price/ fast shipping!
February 23, 2022
: Jeffrey Weiss from Kings Mountain, NC United States
What more could you ask for? Great Pricing on an excellent Holosun sight and shipped in 2 days, received the 3rd day! A+++ Seller!
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0 of 0 people found the following review helpful:
Can’t beat Mas Defense!
December 20, 2021
: Connor Mackay from Golden, CO United States
Best prices out there and incredible customer service! Highly suggest buying from and supporting this wonderful business.
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0 of 0 people found the following review helpful:
Sweet sight
November 7, 2021
: David H from POLO, MO
Good snug fit in my RMR cut slide. Still need to sight in but great first impression.
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0 of 0 people found the following review helpful:
Excellent price!
February 25, 2021
: Brandon from Granite Falls, NC United States
Great deal from great freedom protectors!
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0 of 0 people found the following review helpful:
Great optic
April 24, 2020
: from Beaumont, TX United States
Great optic for the cost - which was extremely competitive, with quick shipping and personalized service. Will buy from here again.
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