{"id":5138,"date":"2026-07-26T22:38:26","date_gmt":"2026-07-26T22:38:26","guid":{"rendered":"https:\/\/landmarkfirearms.com\/ca\/?post_type=product&p=5138"},"modified":"2026-07-26T22:38:38","modified_gmt":"2026-07-26T22:38:38","slug":"glock-19-gen4-mos","status":"publish","type":"product","link":"https:\/\/landmarkfirearms.com\/ca\/product\/glock-19-gen4-mos\/","title":{"rendered":"GLOCK 19 Gen4 MOS"},"content":{"rendered":"

Buy GLOCK 19 G19 Gen4 MOS Pistol<\/h1>\n

GLOCK 19 in MOS Configuration<\/h3>\n
Buy GLOCK 19 G19 Gen4 MOS Pistol. As quick-targeting reflex sights have made their way onto defensive carry guns, GLOCK developed the G19 Gen4 in MOS configuration. This makes mounting a reflex sight on the pistol\u2019s slide without the need for a new slide or separate mounting System quick and easy. Adding to that, the modular back strap system makes it possible to instantly customize its grip to accommodate any hand size. The reversible magazine catch makes it ideal for left and right-handed shooters.<\/div>\n
<\/div>\n
\n
\n
\n
\n
<\/div>\n
\n
Caliber<\/div>\n
\n

9x19mm<\/p>\n<\/div>\n<\/div>\n<\/div>\n

\n
<\/div>\n
\n
System<\/div>\n
\n

Safe Action\u00ae<\/sup><\/p>\n<\/div>\n<\/div>\n<\/div>\n

\n
<\/div>\n
\n
Mag. Capacity<\/div>\n
\n

Standard: 15<\/p>\n<\/div>\n

\n

Optional: 17 \/ 19 \/ 24 \/ 31 \/ 33<\/p>\n<\/div>\n<\/div>\n<\/div>\n

\n
<\/div>\n
\n
Barrel Length<\/div>\n
\n

102 mm | 4.02 inch<\/p>\n<\/div>\n<\/div>\n<\/div>\n

\n
<\/div>\n
\n
Weight<\/div>\n
\n

without magazine<\/p>\n

600 g | 21.16 oz<\/p>\n<\/div>\n<\/div>\n<\/div>\n

\n
<\/div>\n
\n
Weight<\/div>\n
\n

with empty magazine<\/p>\n

670 g | 23.63 oz<\/p>\n<\/div>\n<\/div>\n<\/div>\n

\n
<\/div>\n
\n
Weight<\/div>\n
\n

with loaded magazine<\/p>\n

855 g | 30.16 oz<\/p>\n<\/div>\n<\/div>\n<\/div>\n

\n
<\/div>\n
\n
Trigger Pull<\/div>\n
\n

28 N<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

\n<\/div>\n

\n
\n
DIMENSION<\/div>\n
<\/div>\n<\/div>\n
\n
\n\n\n\n\n\n\n\n\n\n\n\n
1<\/th>\nLength (Overall)**<\/td>\n185 mm | 7.28 inch<\/td>\n<\/tr>\n
2<\/th>\nSlide Length<\/td>\n174 mm | 6.85 inch<\/td>\n<\/tr>\n
3<\/th>\nWidth (Overall)<\/td>\n32 mm | 1.26 inch<\/td>\n<\/tr>\n
4<\/th>\nSlide Width<\/td>\n25,5 mm | 1.0 inch<\/td>\n<\/tr>\n
5<\/th>\nHeight incl.Mag.<\/td>\n128 mm | 5.04 inch<\/td>\n<\/tr>\n
6<\/th>\nLine of Sight (Polymer)<\/td>\n158 mm | 6.22 inch<\/td>\n<\/tr>\n
<\/th>\nLine of Sight (Steel)<\/td>\n157 mm | 6.18 inch<\/td>\n<\/tr>\n
<\/th>\nLine of Sight (GNS)<\/td>\n156 mm | 6.14 inch<\/td>\n<\/tr>\n
7<\/th>\nTrigger Distance**<\/td>\n70 mm | 2.76 inch<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

*FOR GEN4\/GEN5 MODELS: Check out the Gen5 and Gen4 Technology area for medium\/large backstraps.<\/p>\n

Technical Data are rounded and do not reflect tolerances \u2013 they may be altered without notice! Subject to technical changes.<\/p><\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Buy GLOCK 19 G19 Gen4 MOS Pistol GLOCK 19 in MOS Configuration Buy GLOCK 19 G19 Gen4 MOS Pistol. As quick-targeting reflex sights have made their way onto defensive carry<\/p>\n","protected":false},"featured_media":5167,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[164,172],"product_tag":[],"class_list":["post-5138","product","type-product","status-publish","product_cat-firearms","product_cat-glock-gen5-pistols","first","instock","shipping-taxable","purchasable","product-type-simple"],"yoast_head":"\nBuy GLOCK 19 G19 Gen4 MOS Pistol | Canada<\/title>\n<meta name=\"description\" content=\"Buy GLOCK 19 G19 Gen4 MOS Pistol. As quick-targeting reflex sights have made their way onto defensive carry guns, GLOCK developed the G19 Gen4 in MOS configuration. This makes mounting a reflex sight on the pistol\u2019s slide without the need for a new slide or separate mounting System quick and easy.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/landmarkfirearms.com\/ca\/product\/glock-19-gen4-mos\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Buy GLOCK 19 G19 Gen4 MOS Pistol | Canada\" \/>\n<meta property=\"og:description\" content=\"Buy GLOCK 19 G19 Gen4 MOS Pistol. As quick-targeting reflex sights have made their way onto defensive carry guns, GLOCK developed the G19 Gen4 in MOS configuration. This makes mounting a reflex sight on the pistol\u2019s slide without the need for a new slide or separate mounting System quick and easy.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/landmarkfirearms.com\/ca\/product\/glock-19-gen4-mos\/\" \/>\n<meta property=\"og:site_name\" content=\"Canada\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-26T22:38:38+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/landmarkfirearms.com\/ca\/wp-content\/uploads\/sites\/2\/2026\/07\/GLOCK-19-Gen4-MOS.png\" \/>\n\t<meta property=\"og:image:width\" content=\"483\" \/>\n\t<meta property=\"og:image:height\" content=\"433\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/glock-19-gen4-mos\\\/\",\"url\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/glock-19-gen4-mos\\\/\",\"name\":\"Buy GLOCK 19 G19 Gen4 MOS Pistol | Canada\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/glock-19-gen4-mos\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/glock-19-gen4-mos\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/wp-content\\\/uploads\\\/sites\\\/2\\\/2026\\\/07\\\/GLOCK-19-Gen4-MOS.png\",\"datePublished\":\"2026-07-26T22:38:26+00:00\",\"dateModified\":\"2026-07-26T22:38:38+00:00\",\"description\":\"Buy GLOCK 19 G19 Gen4 MOS Pistol. 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