Sightmark® 20 Gauge Premium Laser Boresight. A lightning-fast gun zeroing and sighting system.

So, so easy to use! Just chamber the Boresight like a regular bullet, and a laser dot will show exactly where you're aiming! Then just adjust your sights or scope, and save your extra ammo for the hunt.

Into the woods:

• Ideal for hunters, competitive shooters and law enforcement
• Reduces wasted cartridges and shells
• Compact, lightweight, durable
• Includes carry case and battery pack.

<!--begin-bvseo-questions--><!--begin-questions--><div id="bvseo-questionsSection"> <div class="bvseo-question-answer" data-questionid="1526172"> <h2 class="bvseo-question"> what is the shell chambered for in length wise? 2 3/in ,3 in? </h2> <div class="bvseo-question-detail"> </div> <div class="bvseo-author">Asked by: max87</div> <div class="bvseo-answer" data-answerid="1798857"> It is 2 1/2&amp;quot; long. <div class="bvseo-author">Answered by: Customer Service</div> <div class="bvseo-pubdate">Date published: 2018-03-24</div> </div> </div></div><script type="text/javascript"> if (document.getElementById('bvseo-questionsSection')) { document.getElementById('bvseo-questionsSection').style.display = 'none'; }</script><!--end-questions--><ul id="BVSEO_meta" style="display:none!important"> <li data-bvseo="bvDateModified">y_2018, m_5, d_25, h_5CST</li> <li data-bvseo="ps">bvseo_bulk, prod_bvqa, vn_bulk_2.0.8</li> <li data-bvseo="cp">cp_1, bvpage1</li> <li data-bvseo="co">co_hasquestionsanswers, tq_1</li> <li data-bvseo="cf">loc_en_US, sid_424600, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]</li> <li data-bvseo="diagnostics">clientName_sportmansguide</li></ul><!--end-bvseo-questions--><!--BVSEO|dz:Main_Site-en_US|sdk:v1.0.7.0-n|msg:timer 46ms -->