got an email from S&W link to 300W upper

[3006mv]

http://www.smith-wesson.com/webapp/wcs/stores/servlet/Product4_750001_750051_799601_-1_772153_757784_757784_ProductDisplayErrorView_N

no description though

[3006mv]

here's a better link : http://search.smith-wesson.com/search?client=default_frontend&site=default_collection&start=0&num=16&filter=p&getfields=product-image.product-sku.product-atr1.product-atr2.product-atr3&q=300+whisper

[3006mv]

http://www.smith-wesson.com/webapp/wcs/stores/servlet/Product4_750001_750051_799601_-1_772153_757784_757784_ProductDisplayErrorView_N

says it can safely handle 300 BLK. No mention of size/location of gas port

[spdjnky_42]

those are wayyyy too expensive. The upper for sure.